... if you lived 1 km away from a radio station... i think the nearest radio station for me would be about ...oh, 50 or more km...
38663
Adam
morrows_end
Aug 29, 2003 12:19 am
is ther a way to DIRECTLY turn heat into electricity? if not, why can't we figure it out...? Adam...
38664
duck04_1999
Aug 29, 2003 2:26 am
Adam, Yes there is a way. Ever heard of a gadget called a Thermocoupler??? Thats what they do is take heat and make energy/voltage. All a thermocoupler is...
38665
Gord
gord_1812
Aug 29, 2003 2:49 am
... HMmm maybe a bunch of them in series could be usable? Have to find a few and give it a try. Gord __________________________________ Do you Yahoo!? Yahoo!...
38666
Wilf Rigter
wilf_nv
Aug 29, 2003 2:55 am
Hi Adam, You can use use a thermocouple or a peltier device. wilf ... From: "Adam" <ach_ibo@...> To: <beam@yahoogroups.com> Sent: Thursday, August 28,...
38667
Duane C. Johnson
redrok4
Aug 29, 2003 3:11 am
Hi Adam; ... On a technical basis, it's not posible to produce power of any kind simple heat. However, power of many kinds can be obtained from the flow of...
38668
scuzzyterminator
scuzzytermin...
Aug 29, 2003 6:49 am
Thanks. They look interesting. Another intersting set are the T/RXLC-434 products from Reynolds Electronics: http://www.rentron.com/remote_control/TXLC-434.htm...
38669
westfw
Aug 29, 2003 9:21 am
... Infrared would be easier, cheaper, and have fewer regulatory issues. You can probably get reasonable data rates and range out of the commodity technology...
38670
Sathe Dilip
sathe_dilip@...
Aug 29, 2003 1:01 pm
There is a design of a low powered radio run using thermocouples. The heat comes from a candle. The magazine article describing the construction is somewhere...
38671
Cliff
droidmakr
Aug 29, 2003 1:25 pm
I was curious about this radio so I did a quick search and found this http://oak.cats.ohiou.edu/~weinfurt/thermoradio.htm I'm sure it isn't the one you were ...
38672
Collin Coburn
collincoburn
Aug 29, 2003 1:25 pm
Okay, I've put together a couple of kits and decided to move on to free forming a solar engine. Unfortunately, none of the three I have tried work. What is the...
38673
Sathe Dilip
sathe_dilip@...
Aug 29, 2003 2:19 pm
It could be the same site. Somehow I remembered it as a pdf. May be I saved the whole thing as pdf. I remember the pictures of umbrella like construction...
38674
Kyle Simmons
robokid101
Aug 29, 2003 7:09 pm
hi, i find the simpler engines to freeform or make on a circutdoard are the fred solarengine and the andrew miller engine. you can find stuff on the ...
38675
Jonathan Challinger
Jonathan@...
Aug 29, 2003 9:51 pm
couldn't you make a huge thermocouple and put it in a wood stove, therefore heating your house AND getting electricity?...
38676
duncanbojangles
Aug 30, 2003 4:01 am
Hey, evandude, (Evan Dudzik), you should be a little more careful with your links. You sent us to the link that contained all of your personal information, not...
38677
snovotill
Aug 30, 2003 5:02 am
You can get 750 millivolt thermopiles, or 30 millivolt thermocouples out of old gas furnaces. A thermopile contains multiple thermocouples. For example see: ...
38678
snovotill
Aug 30, 2003 7:30 am
I guess I should also have mentioned this tritium light source link: http://www.roithner-laser.com/tls.htm Could be coupled to a solar cell. ... thermocouples ...
38679
snovotill
Aug 30, 2003 7:52 am
Apparently acoustic energy and mechanical vibration will also power electronic devices. I suppose this means that the old "sound powered" naval microphones...
38680
snovotill
Aug 30, 2003 8:10 am
That thermopile powered radio link you provided looks like it might only work with a germanium transistor, since it only has 27 thermocouples in it, but I bet...
38681
keenerd@...
keenerd286
Aug 30, 2003 10:31 am
I've been trying to find a cheap, compact source of tritium. Its neat stuff, works much the same as television, but using radioactive decay instead of a...
38682
Gord
gord_1812
Aug 31, 2003 4:10 am
Hello Collin Here is a link to Andy Pangs site. http://home.ust.hk/~bcandyp/tutorial2.html It was the first free form bot I built that worked. Andy also has...
38683
Jonathan Challinger
Jonathan@...
Aug 31, 2003 7:24 am
i have a few (2-motor) walker questions: 1. how do you keep small differences in timing from (eventually) spinning one set of legs all the way round? ...
38684
J Wolfgang Goerlich
jwgoerlich_us
Aug 31, 2003 12:15 pm
... I have heard that springs and leg weight works well. Personally, I prefer having the legs know where they are. Take a look at Ben Hitchcock's Not-So-Dummy...
38685
Richard Caudle
Frankendaddy
Aug 31, 2003 5:37 pm
Didn't they have to stop using tritium in watches because the women working in the plants started having kids with six heads and other assorted movie-style...
38686
Bruce Robinson
bruce_and_barb
Aug 31, 2003 6:22 pm
... Springs. You can use mechanical stops, limit switches, proximity detectors that sense the leg, potentiometers, or gravity, but a proper spring arrangement...
38687
Ray
raydiaz8
Aug 31, 2003 7:00 pm
I put up 2 new videos of my new 5 Motor Walker and some more info here: http://raysbeambots.solarbotics.net/crab.htm I fixed it's body layout (made it's torso...
38688
Jonathan Challinger
Jonathan@...
Sep 1, 2003 4:22 am
... i think i like the not-so-dummy walker circuit design ... which kind did you use? there are three, the hn27gd series (example:167038cp), the gh30gm series ...
38689
Bruce Robinson
bruce_and_barb
Sep 1, 2003 5:03 am
... I used the GH12-1045Y, which is in the GH30GM series. The gearbox design looked good at first -- shaft supported at both ends of the gearbox, extra shaft...
38690
Wilf Rigter
wilf_nv
Sep 1, 2003 5:10 am
... Yes and to what extent depends on your controller resources. For a unique approach you could design a walker using modified hobby servos each controlled...
38691
goldentaiji
Sep 1, 2003 5:38 am
I've built the walker from the miller tutorial and then assmebled a biocore circuit to drive another walker. However, both times, it seems that the robot...
