Breaking News
This is the future we shall bring into being
Elon Musk's Vision For The Future Looks Like A Movie
Phosphorus Munitions Fired by Israel Burn Groves, Orchards in Southern Lebanon
Iran's IRGC Warns It Will Expand 'Geography of the War' If the US Attacks Again
Top Tech News
BEYOND THE MOON: NASA plans a nuclear-powered fleet to push DEEPER into space
Big Oil Backs Mazama's $135 Million Bet On Superhot Geothermal
Quantum compass takes flight on Northrop's Lumberjack drone
Terrifying AI Behavior Even Its Creators Couldn't Explain
WW3 Near-Miss? AI Hallucinated Nuclear Weapons Components Aboard Chinese Vessel Bound For Iran
Stripe Is Building the Toll Road for the Machine Economy
Toyota Dakar hopeful swaps twin-turbo V6 for hydrogen fuel cells
4-min turbo-inflatable cubic camp castle is now available in the USA
Researchers Used Claude To Hack OpenAI Employee Accounts
Chinese Scientists Develop New Oil Refining Method That Cuts Energy Use by 90%
DIY Sand Battery Air Heaters! w/heat powered fans! no electricity needed! sand battery room heater!
3 simple DIY "Sand Battery" Air Heaters! all w/non-electric "heat powered" fans! all 3 units run totally off-grid! the hot sand in the 'sand battery' heats the air AND runs the stove fans! no electricity is needed! the hot air rises off the sand and the fans blow that hot air into the living space of a room. hot sand heat storage is a new and exciting technology. sand is great for storing heat *and can store it at very high temperatures. once the sand is heated, the unit (and it's fan) can run for hours! 3 different sand batteries are shown (along with 3 different size stove fans). the on-grid options for heating the sand are stove top or oven. off-grid options are numerous and include campfires, rocket stoves coal stoves, propane stoves, alcohol stoves. (a fresnel lens, a parabolic dish or a solar oven can also be used). a fresnel lens would probably heat the sand very fast