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Help with hotplate
The way most heaters are varied in temperature is by turning the current on and off. While the therm ... |
20-7-2005 at 21:27
by: Mr. Wizard |
Acquired resistence of bacteria to UV
Yes they could mutate. If cockroaches and other organisms can withstand hard ionizing radiation, I&# ... |
20-7-2005 at 17:49
by: Mr. Wizard |
Etching Pyrex to "Frost" or Roughen Surface
An easy method of etching glass, that can be used with a tape mask to get patterns is to shake lead ... |
19-7-2005 at 08:27
by: Mr. Wizard |
Static Electricity
I don't know if it deserves a thread, but I'll try to put a demo pile together with some j ... |
26-6-2005 at 20:21
by: Mr. Wizard |
Static Electricity
[quote][i]Originally posted by 12AX7[/i]
Batteries (DC current) and static electricity are one in t ... |
25-6-2005 at 18:10
by: Mr. Wizard |
Static Electricity
[quote][i]Originally posted by Nerro[/i]
I I were to separate two metal plates by some (isolating) ... |
25-6-2005 at 15:34
by: Mr. Wizard |
Transmitting images or tv-broadcasting signals into electrical charges
If you fully understand how an electronic television works, then you understand how the images are t ... |
25-6-2005 at 06:37
by: Mr. Wizard |
Making E-books into "real" books
Buy a cheap laser printer at Fry's for $99 (Brother) and print it yourself. Most computers have ... |
24-6-2005 at 17:40
by: Mr. Wizard |
SO2 tank
I have an old 'lecture bottle' of SO2 that has had liquid in it for over 40 years. It is a ... |
22-6-2005 at 07:20
by: Mr. Wizard |
Static Electricity
saps,
Yes, I was referring to polystyrene foam chips. Even the blocks of it are very static prone. ... |
18-6-2005 at 08:40
by: Mr. Wizard |
Rubber stopper and a weird story
Get an aluminum beverage can, cut a long strip of metal as wide as 1/2 the diameter of the cork. Str ... |
18-6-2005 at 08:20
by: Mr. Wizard |
Static Electricity
That is a little like asking what chemicals would be best for chemistry. A simple quick answer migh ... |
17-6-2005 at 10:18
by: Mr. Wizard |
Um, okay....freon anyone?
I'd hang on to the Freon. Put a brass flare cap on the tank valve, or when you go to use it in ... |
11-6-2005 at 14:17
by: Mr. Wizard |
Reducing lead
"One warning and you'd think he'd have stopped. Burning storage batteries??? That i ... |
4-6-2005 at 20:26
by: Mr. Wizard |
Reducing lead
I know of a guy who built a rotary kiln smelter to burn old batteries and recover the Lead. He ran i ... |
3-6-2005 at 08:30
by: Mr. Wizard |
Using an electric field to induce a dipole.
This is how an O2 molecule is pulled apart in a strong electric field, and the two parts then can co ... |
26-5-2005 at 05:18
by: Mr. Wizard |
Easy Fe2O3
The black iron oxide is available also from welding fabrication shops, or blacksmiths, as black slag ... |
15-5-2005 at 06:32
by: Mr. Wizard |
Anyone gotten pet. ether like this?
Where do you store your gas mask?  Maybe it's already been contaminated?
Do you notice the s ... |
12-5-2005 at 11:31
by: Mr. Wizard |
How do I store I2?
Here is what a glass sealed sample of Iodine looks like. Yes, you have to snip off the end of the t ... |
12-5-2005 at 11:15
by: Mr. Wizard |
Arc melting...
Cyrus, I did see your post about the charcoal and sugar, but I saw the method a long time ago somewh ... |
9-5-2005 at 07:50
by: Mr. Wizard |
How do I store I2?
Most corks and plastic plugs will show signs of I2 leaking real soon. I had a small bottle of it wit ... |
8-5-2005 at 21:12
by: Mr. Wizard |
Arc melting...
I read an old book somewhere where the porous wod charcoal could be mixed with sugar syrup , formed ... |
8-5-2005 at 07:05
by: Mr. Wizard |
Salts leeched from ground?
"Well, calcium carbonate is insoluble"
It isn't very soluble, but it does dissolve: ... |
5-5-2005 at 12:25
by: Mr. Wizard |
Salts leeched from ground?
My first guess would be Calcium Carbonate. Try treating with Hydrochloric Acid and if it foams up it ... |
5-5-2005 at 07:12
by: Mr. Wizard |
Desktop fusion with pyroelectric crystals
This is simply amazing! Imagine talking about fusion powered by a simple heat source that could powe ... |
2-5-2005 at 17:34
by: Mr. Wizard |
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