RSSEdwin Wise
Edwin is a software engineer with 25 years' experience. He develops software during the day and explores the edges of mad science at night. He can be found at simreal.com.Author of these Magazine Articles
Ping Ponger
The Ping Ponger uses almost half of a rubber racquetball as a disc spring that's bistable (it can be at rest in 2 possible states) to propel a ping-pong ball from a compact PVC launcher.
In
123
from MAKE:
24: Space page 44
"Solar Joule" Bracelet
Solar-cell links are cleverly boosted to drive an LED jewel.
In
DIY: Circuits
from MAKE:
19: Robots page 117
Chladni Plate
Make sound visible with this vibrating setup.
From MAKE:
16: Spy Tech page 122
Vortex Cannons
These three cannons can throw chunks of air in the form of smoke rings across a room.
From MAKE:
15: Music page 114
Tie-Die Topology
Learn how to plan your spirals and swirls when dyeing your favorite Ts.
In
DIY: Wear It
from
CRAFT:
06: Play page 128
Boom Stick
Build a PVC air cannon that delivers maximum bang for the buck.
From MAKE:
13: Magic page 114
Flying Crank Ghost
This classic animatronic prop is de rigueur for any serious haunter.
From MAKE:
halloween2007: Halloween page 104
Hot Glue Web Gun
Make a spider web shooter that'll surely spread the creeps.
From MAKE:
halloween2007: Halloween page 115
Photographer for these Magazine Articles
"Solar Joule" Bracelet
Solar-cell links are cleverly boosted to drive an LED jewel.
In
DIY: Circuits
from MAKE:
19: Robots page 117
Chladni Plate
Make sound visible with this vibrating setup.
From MAKE:
16: Spy Tech page 122
Tie-Die Topology
Learn how to plan your spirals and swirls when dyeing your favorite Ts.
In
DIY: Wear It
from
CRAFT:
06: Play page 128
Boom Stick
Build a PVC air cannon that delivers maximum bang for the buck.
From MAKE:
13: Magic page 114
Downloads & Extras
All the stuff you need to build the projects in MAKE, and exclusive online features direct from the staff of MAKE.
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Squelette, the Bare-Bones Amplifier -- Advice for 220-240v?
Thanks for the quick & clear reply, Ross!...
Squelette, the Bare-Bones Amplifier -- Advice for 220-240v?
25.6V is a standard voltage because it's a multiple of 6.3V. You should be able to find 240V/25...
Squelette, the Bare-Bones Amplifier -- Advice for 220-240v?
Can anyone recommend a transformer to use when building this circuit to be used with Australian (220...
Japanese Punk Shirt --
http://www.vivwestwood.com...
Squelette, the Bare-Bones Amplifier -- 830ohm, 1/2w resistor
The author here. That must be for the LED circuit, right? There's no 830 in the audio circuit....
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