PO I - Palmbux:
Thanks a lot JPHFBux and PalmBux...
Sabtu, Desember 26, 2009
Rabu, Desember 23, 2009
Hacking The Glade Wisp
Hacking The Glade Wisp
Make your own scent output peripheral from a piezo air freshner
Wayne Holder | Make Vol. 16- 2008 | Pdf | 4 pgs | 1 mb
Not long ago, my 11-year-old daughter Belle wanted
to create a gadget that would amuse her dog Panda
by dispensing different scents for him to sniff. I had
no idea how to control the dispensing of fragrances,
so we took a trip to the local pharmacy and checked
out the electric air fresheners.
Most of them diffused fragrances with heat or fans,
but one, the Glade Wisp, claimed to use a microchip
to "automatically puff" scented oils into the air.
Intrigued, I bought one to see what made it tick.
The Glade Wisp runs off a single AA battery, which
powers a vibrating piezoelectric disc that atomizes
and disperses aromatic oil in short, smoke-like puffs.
The Wisp turns out to be easy to hack --- for less than
$10 you can make a computer-controlled aromatic
atomizer for all sorts of practical and artistic projects.
Here's how I modified a Wisp to be controlled by an
Arduino board running just a few lines of code.
...
Chumby Phone
Chumby Phone
Daniel Gentleman | Make Vol. 16- 2008 | Pdf | 4 pgs | 2 mb
There's no simple explanation of the Chumby. It's an
alarm clock on steroids, a digital photo album, a tiny
Linux box, an internet radio player, and more. Owners
can set up a queue of personalized software widgets
through which the Chu mby continually cycles. These
widgets, made interactive through the Chumby's
touchscreen and motion sensors, include news,
weather, email notifications. Flickr feeds, Facebook
friend status, and even Netflix queue status.
Above all, Chumby's open design welcomes
hacking and crafting. The creators of Chumby
offer not only their entire base of source code,
but the schematics to their hardware as well, at
chumby.com/developers/hardware (login required).
...
Selasa, Desember 08, 2009
USB Motion Detector
USB Motion Detector
Turn your PC into an ambush multimedia
Ken Delahoussaye | Make Vol. 16- 2008 | Pdf | 3 pgs | 1 mb
Gone are the days when people's interest could
be held by simple radio or television. Today we're
bombarded with information and we crave interac-
tive experiences that don't waste a single second
of our time. Advertisers recognize the difficulty of
presenting messages that cut through the clutter,
and they've come up with creative ways to capture
our attention.
One example: the multimedia kiosk, now common
in shopping malls, movie theaters, and airports.
Complete with an internal computer, sound card,
and video graphics monitor, these dazzle stations
can be a powerful advertising tool --- especially
when they have motion detection circuitry that
triggers a video presentation at the precise moment
an unsuspecting patron comes near.
This article explains how to construct a USB
motion detector that will give your computer this
hey-you ability, using a free Windows presentation
applet I wrote, USB Multimedia Presenter, so that you
can start your own kiosk advertising campaign. You
can also use the setup for practical jokes, or just to
amaze or amuse your friends.
...
The Disembodied Voice of Judy Garland Speaks!
The Disembodied Voice of Judy Garland Speaks!
How to make a Ghost Phone
Greg MacLaurin | Make Vol. 16- 2008 | Pdf | 3 pgs | 1 mb
Currently, I'm obsessed with analog telephones.
I don't know why. My last obsession was with the
severed hands of mummies, but let's not get into
that. Today it's phones. And these Ghost Phones are
fun. The idea is simple: hide an MP3 player and its
headphone inside an old analog telephone, and you
can listen to someone talking to you!
Kamis, Desember 03, 2009
My Second CO from NB
Above, my second CO from Neobux
Thanks a lot, NB!
I still hope there are other next CO from you
Yeaaah!!!
Selasa, Desember 01, 2009
Probiotics for Weight Loss?
By Margaret Furtado, M.S., R.D.
(Yahoo! Health Expert for Nutrition)
Posted on Tue, Nov 24, 2009, 11:54 am PST
Believe it or not, the human body contains more bacteria living inside than individual cells: 100 trillion microorganisms live in our gastrointestinal tract as compared with a "mere" 10 trillion human cells in our body. And one of the best kinds of microorganisms we can have flourishing inside our bodies are the probiotics, the healthy bacteria that live in our intestines or gut. Now, new research from the Stanford University School of Medicine and Stanford Hospital and Clinics suggests probiotics might even enhance weight-loss programs.
The Stanford researchers first noticed the beneficial effects of probiotics on weight when working with extremely obese patients who've had gastric-bypass surgery. But studies are showing that the benefits of probiotics are not limited to those who've had this medical procedure.
So why are probiotics assisting with weight loss? Several studies have suggested that the guts of normal-weight people contain a different mix or balance of the types and amounts of bacteria that are found in the intestines of overweight folks. One study even found these same imbalances among the microorganisms in 7-year-old kids who were overweight.
Could it be that bad bacteria are causing at least some of our weight issues? Is it possible that one day we'll just ingest a dollop of "weight-friendly" bacteria to bring our body size under control?
It's too soon to know exactly where this discovery will lead, so here are my recommendations:
- Be sure to include foods in your diet that contain probiotics, such as yogurt.
- Avoid brands of yogurt that have the "fruit" at the bottom and instead go with low-fat, low-sugar varieties that contain plenty of protein and calcium. A cup of yogurt is a great snack to hold you over in between meals or after a workout. Greek yogurts are especially high in protein.
- Make prebiotics part of your regular diet as well. Prebiotics--tiny fibers found in some fruits and vegetables--just happen to be what probiotics and other good bacteria eat. Good sources of prebiotics include wheat, bananas, onions, garlic, and leeks. (Europeans eat far more prebiotics than do people in the U.S--might this explain part of the weight discrepancy between the U.S. and European populations?)
- If you have digestive issues, be sure to talk with your doctor or dietitian about "pharmaceutical-grade" probiotics, which are the equivalent of prescription-strength good bacteria.
Paulownia Archery Bows
Paulownia Archery Bows
Dan Albert | Make Vol. 16- 2008 | Pdf | 3 pgs | 2 mb
When we took possession of our humble London
home, I was shocked to find that all the window
treatments had been removed. So we suffered
the rat-in-a-maze Ikea gantlet to get a good price
on new Venetian blinds. I hung the new blinds
immediately but it took me months to get around
to tailoring them by removing the extra slats.
As soon as I did, I realized that I had a maker's
trifecta win in my hands: easily worked hardwood,
prefinished and free.
First I built a new box for our kitchen plastic wrap,
then my daughter wanted some doll furniture. Next
was a laminated beam to repair our baby stroller,
and a few slats to serve as drawer dividers for the
clothes dresser I'd built ages ago but never quite
finished. But the piece de resistance was a set of
archery bows that I whipped up to the delight of the
neighborhood kids.
...
Chatter Telephone
Chatter Telephone
Surprise! A classic pull-toy phone that realy works
Frank E. Yost | Make Vol. 16- 2008 | Pdf | 3 pgs | 2 mb
I remember making pretend phone calls on my
Fisher-Price Chatter Telephone when I was 7 or 8,
and wondering if it was possible to turn it into a
real phone. That question stayed with me, and when
I saw a Chatter Telephone and a Crosley Princess
Telephone recently at Target, I knew the answer was
yes. I brought them home and made it work, and it
was easier than I expected.
Twinkle Toes
Twinkle Toes
Add a flashing, tricolor UFO to your roller skates
Dan Bassak | Make Vol. 16- 2008 | Pdf | 4 pgs | 2 mb
Skatetown is our local roller rink in Bloomsburg, Pa.
For years, it's also been my artistic LED experiment
laboratory. I started by taping single-color LEDs to
skates. They were so popular that one session on
the floor looked like a swarm of fireflies.
My latest LED invention is the UFO Toe Stop. It
uses a disk-shaped "flying saucer" unit that con-
tains a red, green, and blue (RGB) LED. I wanted to
blend the colors in interesting ways, so I wired it to
a PIC-controlled RGB microcontroller that comes
with programmed routines such as fixed colors,
fast-changing rainbows, or dazzling strobe effects.
I also used some translucent jam plugs (small
bolt covers used in skate dancing) that I bought in
the rink's pro shop as light diffusers.
...
Minggu, November 22, 2009
Remote Volume Knob
Remote Volume Knob
Paulo Rebordao | Make Vol. 16- 2008 | Pdf | 2 pgs | 1 mb
There's nothing like hard work to get your mind
running. Having to get up from the couch to adjust
the volume on my old stereo amp several times
each night got me thinking. I didn't want to buy
a new stereo, so I came up with a plug-in remote
volume controller that you can easily adapt to
anything with a reasonable-sized volume knob.
My circuit uses a Picaxe-08M microcontroller,
which is programmable in BASIC, and a TSOP2238
infrared receiver, which sees signals from any
Sony (or compatible) TV remote. The removable
device hangs off the volume knob, attached with
velcro.
At the top, an R/C servomotor turns the knob
through about 180° of travel, which should be
enough range for most environments. At the
bottom, 3 AA batteries act as a "keel," weighing
that end down so that the knob is forced to turn.
...
G-Meter and Altimeter
G-Meter and Altimeter
Double-duty aerospace instrument on a shoestring budget
David Simpson | Make Vol. 16- 2008 | Pdf | 4 pgs | 2 mb
Here's an aerospace instrument you can build for
$5 that will measure the crushing forces that a
model rocket withstands and the rarified strata it
attains. It isn't exactly six-sigma technology in
terms of accuracy, but it's darn fun.
The device, which you install in the rocket's
payload compartment, uses 2 small bands of
heat-shrink tubing that slide over a dowel to record
the maximum G-force and altitude attained. As
the rocket accelerates, the G-force band is pushed
down by washers on a spring, and as the rocket
rises, the altitude band is pushed down the rod by
the expansion of a pressure chamber made from a
pill bottle and a rubber-balloon membrane.
...
Jumat, November 20, 2009
Chladni Plate
Chladni Plate
Edwin Wise | Make Vol. 16- 2008 | Pdf | 11 pgs | 3 mb
BEATIFUL ACOUSTICS
Use a broken speaker, bits of wire, and
tape to prepare a coneless voice coil
driver, then use it to generate standing
waves on a sheet of metal, making
sound visible. Magic!
My knowledgeable friend Robin once
said that you don't need to worry about
having too big an audio amplifier,
because speakers are usually damaged
by under-powered amps working too hard
and clipping the signal, creating rough
square waves with too much power.
I learned that this is true when I melted
a speaker's coil by running a strong
20Hz signal through it, to drive a vortex
cannon (MAKE, Volume 15, page 114).
On the bright side, I now had a nice
speaker magnet to use as the foundation
for something else I wanted to try,
a Chladni plate!
...
DIY-brary
DIY-brary
Rick and Megan Prelinger couldn't find a library
with what they wanted, so they made their own
R.U. Sirius | Make Vol. 16- 2008 | Pdf | pgs | mb
It's an overcast Monday afternoon as I arrive at
8th and Folsom in San Francisco's seedy, bohe-
mian SOMA district. I find 3018th Street and then
buzz Room 215. A voice says hello. I tell him who
I am and he buzzes me in. I take an elevator to the
second floor, walk past several closed offices, and
enter a small room packed to the rafters with four
rows of shelves filled with books stacked 15 feet
high. This is not your typical 21st-century urbane.
haute-culture library.
The Prelinger Library (prelingerlibrary.org) is
the brainchild of Megan Shaw Prelinger and Rick
Prelinger. Founded in 2004, it's a DIY, appropriation-
friendly, intuitive, and highly personalized context for
organizing and sharing this couple's books, periodi-
cals, printed ephemera (like obscure government
documents from the Department of Indian Affairs),
and - most of all - their obsessions. In addition to
its physical presence in San Francisco. it has an on-
line presence of more than 3.000 scanned volumes
at the Internet Archive (archive.org).
...
Wheelchair Safety System
Wheelchair Safety System
Bryant Underwood | Make Vol. 16- 2008 | Pdf | 1 pgs | .4 mb
My daughter Katy uses an electric wheelchair
and last year she went off to college. Her mom and
I were concerned about Katy's safety in navigating
the campus -- she might get her chair stuck or have
some other type of trouble and not be able to get to
her cellphone.
So I used a Parallax microcontroller to control
a GSM cellphone as a "telematics" system for her
wheelchair. Inside the gray box mounted on the
back of her chair. I use the phone in speakerphone
mode with an external microphone and speaker.
...
Kamis, November 19, 2009
Malam Pertamaku
malam ini malam pertama buat aku
pertama kali membuktikan bahwa
engkau bukanlah SCAM
meski cuma sekian
bahagia rasanya hati ini
rasa penasaran
tuntas sudah
malam ini
malam pembuktian bagimu
untukku
NEOBUX
terimakasih TUHAN
terimakasih untukmu... NEOBUX
salut untukmu... NEOBUX
juga buat ALERTPAY... thanks
semoga masih ada
malam-malam berikutnya
seperti malam ini
ah, asyiknya...
dua kali dapat
BUX!
Instalasi Air Jet Blower Sederhana
Tandiono, ST., AMM Industrial Development PT Ekamant Indonesia menyebutkan bahwa hanya 40 persen mesin sander yang memiliki Air Jet Blower. Dan jumlah itu, diperkirakan hanya sekitar 20 persen yang masih berfungsi.
Temuan di lapangan memperlihatkan tak semua air jet blower yang ada berfungsi baik. Tak jarang ditemui tekanan angin yang dipergunakan hanya 1-2 bar. Akibatnya clogging tetap terjadi sehingga memperpendek usia pakai amplas. Ada kalanya air jet blower dimatikan dengan berbagai alasan.
MenurutTandiono, umumnya mesin sander hanya memiliki 1 unit air jet blower yang ditempatkan pada head terakhir. Headnya berupa pad yang digunakan untuk finishing. "Asumsinya beban kerja finishing dianggap lebih berat dibanding satu atau dua head sander sebelumnya," jelasnya. Itu sebabnya air jet blower dipasang di sini. Tujuannya memperpanjang usia pakai amplas di head ini. Tidak di head sebelumnya.
Padahal, perpanjangan usia pakai amplas sebenarnya tak hanya bisa dilakukan di head sander finishing. Tapi juga bisa dilakukan di head sander kalibrasi dan intermediate. Artinya ada upaya perpanjangan usia pakai amplas secara menyeluruh.
Menurut Tandiono, berfungsinya air jet blower merupakan salah satu faktor yang bisa memperpanjang usia pakai amplas. Faktor lain seperti rendahnya moisture content kayu, kekeringan amplas dan dust collector yang berfungsi baik.
Penginstalasian air jet blower sederhana ini cukup mudah karena hanya butuh pipa besi berdiameter 1/2 -1 inchi. Pipa harus tahan terhadap tekanan udara 4-6 bar, tekanan udara yang dibutuhkan agar dapat melepaskan serbuk kayu yang menempel pada permukaan amplas.
Lubangi pipa dengan sejumlah lubang-lubang kecil (nozzle). Jarak minimal antara lubang sesuai jarak tracking amplas, agar seluruh permukaan amplas dapat dibersihkan. Upayakan agar tembakan angin berlawanan dengan arah perputaran amplas sehingga diperoleh tekanan angin yang maksimal.
Agar maksimal maka dust collector pun harus berfungsi prima. Ini membantu tersedotnya ke atas serbuk kayu yang terlepas dari permukaan amplas akibat tembakan angin air jet blower. Agar tekanan angin mudah dikontrol, pasang Pressure Gauge dan Manometer. Lebih bagus lagi bila dilengkapi water filter, sehingga angin yang keluar dari kompresor tidak bercampur dengan air (lihat gambar).
Dengan memfungsikan air jet blower sederhana ini secara prima, usia pakai amplas bisa diperpanjang hingga 50%. Perpanjangan usia ini merupakan upaya penghematan yang
cukup signifikan, apalagi bila tidak terjadi di finishing head saja. Memfungsikannya harus dibarengi dengan perawatan rutin, sehingga mencegah penumpukan kotoran pada
noozlenya. "Bila tidak dibersihkan maka noozle akan mampet dalam 5-6 bulan," jelas Tandiono.
Dengan air jet blower sederhana ini, upaya penghematan pun sudah mulai bisa dilakukan. Perpanjangan usia pakai yang mencapai 50% tentu cukup membantu efisiensi perusahaan dalam waktu-waktu mendatang.
Woodmag, April 2007
Magazine for Ekamant's Premier Customer
Pole's-Eye View
Pole's-Eye View
William Gurstelle | Make Vol. 16- 2008 | Pdf | 9 pgs | 3 mb
A POLE-MOUNTED
AERIAL PHOTOGRAPHY RIG
Sometimes nothing is as important
as perspective. My goal in photography
is often to find a view no one else has
found, to be able to see things from
unusual and insightful vantage points.
The most practical way to obtain the
elusive aerial perspective is by attaching
a camera to a pole. While not trivial, it's
not complicated, either. Making a pole-
mounted camera rig like the Sky Eye
takes about a day, not including trips to
the store. You can make the rig and
use it the same day.
...
Rabu, November 18, 2009
5-Minute Foam Factory
5-Minute Foam Factory
Bob Knetzger | Make Vol. 16- 2008 | Pdf | 9 pgs | 3 mb
FRY BY WIRE
What keeps your coffee warm but also
rides the cold Pacific surf? What's in the
Rock and Roll Hall of Fame but makes an
annoying, squeaky sound? Even though
it's banned in over 100 cities, you can
find it just about everywhere. What is it?
It's expanded polystyrene (EPS) foam.
Styrofoam is a great insulator (for hot drink
cups and wall insulation), lightweight and
stiff, and impervious to water (great for
surfboards). Unfortunately, it's also
impractical to recycle and can be an
unsightly part of the waste stream. Our
landfills and waterways are filling up with
discarded coffee cups, store meat trays,
and take-out packaging.
With this easy hot-wire foam cutter, you
can reuse this leftover EPS foam to create
treasures from trash!
...
The Spinning Cylinder Illusion
The Spinning Cylinder Illusion
Donald Simanek | Make Vol. 16- 2008 | Pdf | 3 pgs | 1 mb
I've not been able to track down the origin ofDownload...
this homemade toy, but it isn't very well known
outside the community of physics teachers. It's
a kinetic illusion, one that depends on physical
motion to make you see something that isn't there.
A familiar example of a kinetic illusion is the
strobe effect sometimes seen in old movies, causing
the spokes of a carriage wheel to seem to be turning
in the wrong direction.
In its simplest form, this toy consists of a hollow
cylinder of rigid plastic. The version in these photos
is 4cm long and 1cm in diameter, with 2mm wall
thickness. It was cut from a piece of polyethylene
plastic tubing that happened to be lying on my
workbench. Whatever tubing you use, be sure to
choose a very straight piece.
...
Mirror
Flipping Faces
Flipping Faces
Reveal the assymetry in familiar features--- including your own
Erico Narita | Make Vol. 16- 2008 | Pdf | 2 pgs | .3 mb
None of us is perfectly symmetrical, but our eyes tend not to notice irregularities in faces we see many times. Anyone watching national TV news, for instance, had eight years to get familiar with Dick Cheney's lopsided grin, and a previous generation had an equal amount of time to get used to Ronald Reagan's crooked smile.
To see these features more clearly, select one half of the face and reflect it, so that the 2 sides become identical. Then select the other half and reflect that, and compare the 2 versions. The results will be surprising.
Selasa, November 17, 2009
Viva Easy-share !
this day is the beautiful day in my life
you know what? because of you..., easy-share
the day that i received my fee from you
the very very first payment for me
thanks GOD...!
thank you, easy-share...
VIVA EASY-SHARE !
although some peoples out there called me an 'abnormal' person because
using you, STAY ALIVE... FOREVER!!!
Best Regards
see you in the next payment, i surely hope so
Create an Insect Eye
Create an Insect Eye
Make a multifaceted image from any portrait photo
Charles Platt | Make Vol. 16- 2008 | Pdf | 2 pgs | .4 mb
I wanted an insect-eye effect in Photoshop, but I wasn't satisfied with the ones that I found as plugins. So I made my own. This procedure works with Photoshop 6 or later.
Shadowless Closeups
Shadowless Closeups
A simple setup for better auction photos
Charles Platt | Make Vol. 16- 2008 | Pdf | 2 pgs | .3 mb
A friend of mine used to take the photographs for the sales catalogs printed by Sotheby's, the old-school auction house. Since many of the items up for sale were worth tens of thousands of dollars, they had to look good.
When I'm selling little items on eBay, I think it's still worth taking a little trouble to enhance their appearance instead of just using a flash photo of something sitting on a kitchen table. The main thing I learned from my friend is that if you place an object on an elevated glass plate and use a large, diffuse light source, your object will seem to float in space instead of sitting on its own shadow.
...
Sparky 2: No Sellout
Sparky 2: No Sellout
My robotic alter ego steps out -- open source
Marque Cornblatt | Make Vol. 16- 2008 | Pdf | 4 pgs | 2 mb
I spent much of my childhood dismantling toys
and gadgets and cobbling them back together in
interesting ways. One proud example combined
a slot car, a one-function wireless remote, a 9-volt
battery, and a few fabricated gears and bits to
create (in my mind, in the early 80s) the world's
smallest remote control car.
The 2-inch vehicle was top-heavy and had too
much torque, but it accelerated violently to the
right every time I pressed the remote button -- it
worked! - until it finally tore itself apart, like a tiny
top-fuel dragster. In my mind it was a success, and
it sparked my lifelong interest in interactive, kinetic
projects.
...
Senin, November 16, 2009
Alien Projector
Alien Projector
Brian McNamara | Make Vol. 16- 2008 | Pdf | 1 pgs | .2 mb
This simple projector shines an image of an alien
on the wall. It uses an LED as the light source and
projects an image varying in size from a few inches
to several feet.The simple circuit consists of only a
battery, resistor, switch, and LED.
24 Hours of Make: Television
24 Hours of Make: Television
Building a TV show is a project in itself
Dale Dougherty | Make Vol. 16- 2008 | Pdf | 4 pgs | 1 mb
It's already late on a Sunday in September in
St. Paul, Minn. In the studios of Twin Cities Public
Television (TPT), there are ten people working
on Make: television, a new PBS show that will be
a companion to this magazine.
The set is a workshop, within a larger workshop
normally used for set construction. The team is
shooting a build for Maker Workshop, the segment
that shows viewers how to make something in each
episode. It's important to get this segment right. It's
like demonstrating a recipe on a cooking show, but
the ingredients and the process are more technical.
...
Warholize!
Warholize!
Turn your favorite blonde into a silk-screened glamour queen
James Grant | Make Vol. 16- 2008 | Pdf | 2 pgs | .3 mb
When Andy Warhol made his famous silk-screened prints of Marilyn Monroe, he started with a simple idea: use a high-contrast black-and-white photo, and overprint it with bold swatches of color. Is that idea simple enough for us to emulate it with modern image-editing software? Let's find out. This will work in Photoshop 6 or later versions.
Minggu, November 15, 2009
Surface Mount Soldering
Surface Mount Soldering
Techniques for making modern circuits
Scott Driscoll | Make Vol. 16- 2008 | Pdf | 8 pgs | 2 mb
When cellphones were housed in briefcases,
manufactured electronics had easy-to-solder
leads. Now phones fit in pockets, and the smaller
surface-mount devices (SMDs) inside are driving
through-hole components into extinction.
SMDs can cost less than their old-school equiva-
lents, and many newer devices, including most
accelerometers, are only available in SMD format.
If you design printed circuit boards, using
SMT (surface-mount technology) and putting
components on both sides makes them cheaper
and smaller. This may not matter on a robot, but it
helps a project fit into a mint tin or hang off a kite.
SMDs are designed for precise machinery to
mass-assemble onto densely packed PCBs. Their
tiny leads may look impossible for human hands
to work with, but there are several good, relatively
inexpensive methods that don't require a $1,000-
and-up professional SMT soldering station.
My Daughter's DNA
My Daughter's DNA
One father's search for the scientific answers
that no one seemed to have
Hugh Young Rienhoff Jr. | Make Vol. 15- 2008 | Pdf | 4 pgs | 2 mb
If you scrape the inside of your cheek
with a pop-sicle stick and mix it with a few homely
salts and a shot of grain alcohol, you'll see a
fluffy cloud of material floating in the glass.
It looks like cotton, but it's really the code of
you. DNA is deceptively ordinary-looking.
The human genome - the totality of each person's
genes within their body - is a vast chemical space
with 6.6 billion bits of DNA information that con-
stitutes genetically what we are as Homo sapiens.
In that vastness, it's easy for a single deviant bit of
DNA to hide. I suspected that. like many of those
with genetic conditions, my daughter also had a
single DNA base that was awry. Finding that variant
is like looking for a single person in a world of 6 billion
people. It's a near-impossible task unless you have
clues for where to look, for which genes might be
altered. Clues like this always begin with the patient.
...
Sabtu, November 14, 2009
VoIPing the iPod Touch
VoIPing the iPod Touch
How makers gave you the feature that Apple held back
Erica Sadun | Make Vol. 15- 2008 | Pdf | 2 pgs | 1 mb
It's a maker's dream: turn your homebrew ideas
into a concrete reality and then ship that product.
This dream came true for iPod hackers Dr. Marian
Kepesi, "Eok," and Samuel Vinson. They designed,
built, and shipped an iPod touch microphone and
developed VolP(voice over internet protocol) soft-
ware to place phone calls using that mic.
Last November, Kepesi was poking around on his
iPod Touch. A postdoc at Austria's Graz University
of Technology, he had previously worked with third-
generation iPods and was interested in the new
Touch line.
During his explorations, he discovered an impor-
tant fact about the iPod Touch's bottom connector
port: its line-in audio was active. Live pins meant
that the iPod Touch could connect to an external
audio source. It was compatible with recording or,
better yet, with VolP for talking over the internet.
VoIP compatibility was a long-standing goal of the
iPhone and iPod Touch hacker community.
...
The Penetrating Magnets Illusion
The Penetrating Magnets Illusion
"Magnets are fascinating things, and they behave in
unexpected ways. I will show you a little-known
property of magnets, which actually allows them to
pass through one another."
Donald Simanek | Make Vol. 15- 2008 | Pdf | 2 pgs | 1 mb
Back in 2004, I invented a physics toy using
magnets, one I hadn't seen described elsewhere.
So I called it Simanek's Penetrating Magnet Illusion.
It obeys Newton's laws, like the others, but why
should Newton get all the credit?
This toy is inexpensive and absurdly easy to build.
Find a dozen small, flat ceramic magnets, 1" diameter,
1/4" thick, with a 3/8" hole in the center. You can get
them at RadioShack or hardware stores. You don't
need a full dozen, but extras are good to have.
...
Great Balls of Fire!
Great Balls of Fire!
Keith Hammond | Make Vol. 16- 2008 | Pdf | 5 pgs | 2 mb
It's true: chemistry sets today don't measure up
to the classic kits that once scorched Formica
kitchen tables across the nation. But you can
still find respectable kits if you know where to look.
More importantly, anyone can make their own flam-
ing, fuming, booming DIY chemistry set as good as
those from the golden age - or better.
Jumat, November 13, 2009
The Amazing Seebeck Generator
The Amazing Seebeck Generator
Andrew Lewis | Make Vol. 15- 2008 | Pdf | 9 pgs | 3 mb
FLAME ON
With no moving parts, this simple energy-recycling
generator scavenges waste heat from a candle and turns
it into usable electricity.
Peltier cells are flat devices that draw heat from one side
to the other through a thermoelectric principle called the
Peltier effect. The cells are commonly used to pump heat
away from CPUs or graphics cards, and are also found
in camping coolers and heaters. The Amazing Seebeck
Generator uses one of these devices in reverse, to turn a
heat differential into electricity, rather than using electricity to produce a heat differential.
...
Compressed Air Rocket
Compressed Air Rocket
Rick Schertle | Make Vol. 15- 2008 | Pdf | 13 pgs | 4 mb
PAPER, TAPE, COMPRESSED AIR... LIFT-OFF!
Blow your friends away as you send this 25-cent
rocket hundreds of feet in the air. You can build this
easy launcher and rocket with common hardware store
items in an afternoon.
All the parts for this simple but impressive air rocket and
launcher are cheap and easy to find. Building it is a breeze
and the modifications are endless. It's legal in a big city,
reusable, clean, and can be launched even in high winds
on a small field.
Believe me, folks are quite taken by the 200- to 300-foot
flights fueled by 18 or so bicycle pumps of compressed air.
Whether you're launching on your own or with a whole
group of rocketeers, watch the crowds gather ... 3,2,1,
and away!
The Year People Learned to Fly
The Year People Learned to Fly
Celebrating the 30th anniversary of the flight of the Gossamer Condor
Ben Shedd | Make Vol. 11- 2007 | Pdf | 3 pgs | 1 mb
One of the great home-built family maker projects
celebrated its 30th anniversary on Aug. 23, 2007:
the flight of the world's first truly successful
human-powered airplane, the Gossamer Condor.
The plane was designed and built by Dr. Paul B.
MacCready, along with his family and friends, on
weekends over a year's time in 1976-77. The goal
was to win the first Kremer Prize, a $100.000
reward for the first human-powered airplane that
could take off using human power, fly over a 10-foot
marker, make a complete left turn and right turn
around two pylons spaced half a mile apart, and
then fly over the 10-foot marker again at the end
of the mile-long flight.
...
Kamis, November 12, 2009
The Little Cart That Couldn't
The Little Cart That Couldn't
Wind-powered vehicle claims look like hot air
Charles Platt | Make Vol. 11- 2007 | Pdf | 7 pgs | 2 mb
Can a wind-driven vehicle outrun a tailwind? A Florida tinkerer named
Jack Goodman claims it can, and he put a video on YouTube to prove it. Some
sailing enthusiasts became convinced that he was on to something, while
others were equally sure it was a hoax - and I decided to put it to the test.
The iConveyor
The iConveyor
John Edgar Park | Make Vol. 15- 2008 | Pdf | 6 pgs | 2 mb
The iConveyor is a simple motorized conveyer
belt with an RFID (radio frequency identification)
reader under the belt. It lets you visit websites
or load applications on your computer by simply
dropping a chip in the belt. Each wooden chip
has an RFID tag attached to it. The reader picks
up the unique ID number of the tag and sends
the number to your personal computer, through
a cable. A computer program written for the
iConveyor looks up the name of the website or
application assigned to the ID number and loads it.
Vortex Cannons
Vortex Cannons
Edwin Wise | Make Vol. 15- 2008 | Pdf | 9 pgs | 3 mb
DOING DONUTS
A smoke ring, or vortex, is a beguiling thing to watch:
a coherent, moving structure made out of thin air. Here
are 3 cannons that can throw these "chunks of air"
across a room.
I'd been aware of vortex cannons for quite some time,
mostly as an interesting toy, and after I kept stumbling on
the concept while touring the web, I decided I had to build
my own. There's something fascinating about taking a
substance as ubiquitous and amorphous as air and trans-
forming it into a coherent and persistent structure, almost
like a crystal. I also hoped to find some use for my cannon,
perhaps to propel scents or give the touch of a ghost in
a haunted house.
...
Rabu, November 11, 2009
Spin the Birdie
Spin the Birdie
Larry Cotton| Make Vol. 11- 2007 | Pdf | 11 pgs | 4 mb
BIRD SHOT
Birds make lousy subjects for digital
photographs. They're fearful, fidgety,
and, well, flighty. But you can improve
your odds of getting awesome avian
photos by moving your camera closer
to the birds --- and you farther away.
And while you're at it, why not get
them to pose for you?
U-G-L-Y Your Bike
U-G-L-Y Your Bike
To deter thieves, camouflage your bicycle as a piece of
crap while keeping it a first-class ride
Rick Polito | Make Vol. 11- 2007 | Pdf | pgs | mb
Nature is the master of disguise. The tiger swallowtail caterpillar starts out camouflaged as a bird dropping to discourage hungry birds. Take a tip from the crawling turd and keep your bike from getting swiped: dress it down as a pile of rolling junk.
Having an ugly bike doesn't mean having a junky bike. Looks and performance have no exclusive relationship. A savvy bike thief may see the gem under the Krylon, but he also knows he can't sell it as quickly as the tricked-out speedster at the other end of the bike rack.
...
Selasa, November 10, 2009
Bend It Like Bach
Bend It Like Bach
Tim Kaiser's fabulously weird world of music
Karen K. Hanseb| Make Vol. 15- 2008 | Pdf | 5 pgs | 2 mb
When English soccer star David Beckham bends the
ball, the international sports world watches in awe. When
American musician Tim Kaiser bends a circuit, the audi-
ence listens just as intently, be it in an art or performance
space, or a bar, bookstore, or library.
MAKE, Volume 12 (page 14) introduced readers
to Tim Kaiser, but even people who've never
heard of him have probably heard his sounds.
These may emanate from the instruments
Kaiser himself creates and plays, such as
Bungee Drums made from concrete post forms
or the New Metal Violin made out of the battery
compartment of a minesweeper. Or they may
issue forth as distorted or modulated samples
from one of Kaiser's Atomic SonicFX Boxes in the
hands of other artists.
Among those emitting Kaiser sounds are
Duran Duran and film score producer BT (Brian
Transeau), who recently featured some of
Kaiser's instruments in his recording This
Binary Universe.
Senin, November 09, 2009
Evil Mouse Prank
Evil Mouse Prank
Control your co-worker's cursor!
John Edgar Park | Make Vol. 15- 2008 | Pdf | 2 pgs | 1 mb
Joe Bowers is sneaky, resourceful, and rotten to
the core. Whatever you do, don't get in a prank war
with him.
Returning to my desk from a coffee break. I sat
down, grabbed my mouse. and ... nothing. The
cursor was stuck to the left wall of my monitor.
I shook my mouse wildly. The cursor moved up
and down just fine. But when I jerked my mouse
viciously to the right, the cursor nudged a little,
then slammed back to its new favorite position,
clinging maddeningly to the leftmost pixel.
Blowing on the mouse's nether regions didn't help,
so my officemate, Hide Yosumi, took pity on me. "Do
you hear something?" he asked knowingly. There
was a high-pitched whine coming from behind my
workstation. I looked and saw that a strange mouse
was plugged in. Not just any mouse. A prank mouse.
...
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