Search found 74 matches
- Mon Sep 18, 2006 8:11 pm
- Forum: General Discussion
- Topic: Very far-fetched pre-project...
- Replies: 23
- Views: 15603
Ir remote’s don’t work anywhere near the THZ range cutting off very short as this is way past the giga Hz range and has soo many cycles quantitatively larger than a radio or general IR having hundreds of times if not thousands of time more saturation and information than most, leaving not only ...
- Sat Sep 16, 2006 2:15 pm
- Forum: General Discussion
- Topic: Since N&V won't publish it, here it is....
- Replies: 3
- Views: 3228
- Sat Sep 16, 2006 1:53 pm
- Forum: General Discussion
- Topic: Very far-fetched pre-project...
- Replies: 23
- Views: 15603
Terra Hz usually sees through walls. Which frequency sees through what depends on the material. For example if a radio works inside something, it is on a frequency that goes thru those walls. An Infrared TV remote uses TeraHz, but a cordless phone is around a GigaHz. Which goes through walls better...
- Sat Aug 12, 2006 2:46 am
- Forum: General Discussion
- Topic: Programming a microchip to speak text
- Replies: 14
- Views: 8492
- Sat Aug 12, 2006 12:34 am
- Forum: General Discussion
- Topic: Natural Gas Refrigeration
- Replies: 10
- Views: 4876
- Fri Aug 11, 2006 4:07 pm
- Forum: General Discussion
- Topic: Natural Gas Refrigeration
- Replies: 10
- Views: 4876
natural gas cooling systems
This is probably not relevant to cars but is a lot of methods. 1.CO2 is sometimes recycled from smoke stacks and used to make "gassy fast food beverages". It comes in tanks and is mixed with the syrup and H2:O in the machine. However, if you rapidly spray the tank into a radiator with a fa...
- Tue Aug 08, 2006 5:49 pm
- Forum: General Discussion
- Topic: plasma HDTV TV's
- Replies: 11
- Views: 4609
I agree with the LCD. The dots are small and the display is the only kind you can get that doesn't flicker. DLP in theaters doesn't flicker but home versions do. When shopping for big TVs wave your hand in front of them and if they flicker you'll see lots of hands. Look closely and see if you can se...
- Mon Aug 07, 2006 1:23 am
- Forum: General Discussion
- Topic: Building your own CPU from TTL chips
- Replies: 42
- Views: 51082
- Sun Aug 06, 2006 11:55 pm
- Forum: General Discussion
- Topic: Invisible infrared lamps...
- Replies: 30
- Views: 12120
The kind of paint on the wall may have a large effect on the reflectance of IR too. Try bouncing off aluminum foil? Exactly, if the camera can see direct but not reflected IR, then the surface is not reflecting. Imagine trying finding a green cloth in a dark room with a red lamp. Even if there is n...
- Sat Aug 05, 2006 12:00 pm
- Forum: General Discussion
- Topic: Goodbye RFID
- Replies: 15
- Views: 7815
- Thu Aug 03, 2006 1:25 pm
- Forum: General Discussion
- Topic: 431000 RAM Chip
- Replies: 3
- Views: 2110
- Thu Aug 03, 2006 1:00 pm
- Forum: General Discussion
- Topic: Programming a microchip to speak text
- Replies: 14
- Views: 8492
- Thu Aug 03, 2006 12:37 pm
- Forum: General Discussion
- Topic: Invisible infrared lamps...
- Replies: 30
- Views: 12120
- Tue Aug 01, 2006 12:41 pm
- Forum: General Discussion
- Topic: Programming a microchip to speak text
- Replies: 14
- Views: 8492
- Tue Aug 01, 2006 11:13 am
- Forum: General Discussion
- Topic: Maximizing Radio Efficiency
- Replies: 18
- Views: 12724
Just try this first then. It will be FUN.
Especially scavenging the trash for an old computer.
http://sci-toys.com/scitoys/scitoys/com ... itter.html
Especially scavenging the trash for an old computer.
http://sci-toys.com/scitoys/scitoys/com ... itter.html