Explosions get you much more bang from your fuel buck than combustion – if your engine can withstand them. NASA believes the rotating detonation engine could be the future of deep space travel, and it's getting strong results in prototype testing.
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!
New forms of thermal energy storage systems built using abundant, cheap materials are on the rise. One company is aiming to sidestep the complications that come with chemical batteries…with a brick battery.
Lithium-ion remains the battery energy storage technology that all newcomers need to beat if they want to get a share of the market. More of more of them are looking like doing just that, including an alternative chemistry using one of the Earth's mo
Imagine, the S has hit the fan. Several years have passed and have made for trying times. You've managed to survive a famine, and defended yourself and your family from vicious groups of people that have threatened you.
With two full years of running this system, I have more perspective on it now than before and in this video I give a full tour and share everything I have learned. I also answer a bunch of common questions about solar and my system in general.
This video shows an overview of the PortaPen build. I did this for a zoom presentation on Permaculture that I was part of recently. Here is a link to our DIY plan if you would like a more detailed explanation...
Most people imagine robots at work in a factory, but there's no less innovation going on at the farm--take this spoke-wheeled robot plant nurse who can inspect 50 acres of row crops for disease, pests, or other issues.
Scientists working in techno-agriculture have found that by covering crops with canopies of translucent solar panels, they can separate the light which generates energy from the light that leads to photosynthesis in plants.
In the mountains overlooking Barcelona, a team at Valldaura Labs has built a solar greenhouse that harnesses the sun both to grow plants and to create energy to power the hydroponic system for year-round growing.
"And you shall eat the fruit of your womb, the flesh of your sons and daughters, whom the Lord your God has given you, in the siege and in the distress with which your enemies shall distress you." -Deuteronomy 28:53
The experiments show aging is a reversible process, capable of being driven "forwards and backwards at will," said anti-aging expert David Sinclair, a professor of genetics in the Blavatnik Institute at Harvard Medical School and codirector of