Lifeboat Foundation

A wind turbine shaped like a tree! 😃

This nature-inspired wind turbine is designed like a tree to silently generate green energy using its micro-turbine leaves. (Follow Tech That Matters for more.)

Credit: New World Wind

Plan calls for a subtle but crucial shift toward applied research in Department of Energy fusion program.

Almost 200 years after French physicist Jean Peltier discovered that electric current flowing through the junction of two different metals could be used to produce a heating or cooling effect, scientists continue to search for new thermoelectric materials that can be used for power generation.

Researchers writing in Nature Materials, however, say it is time to step up efforts to find new materials for thermoelectric cooling.

Bismuth tellurium compounds have been used for thermoelectric cooling for more than 60 years, and the researchers say the fact that there is already a commercial demand for the technology suggests better materials can expand the market.

Analysis of 12 papyrus fragments from the Tebtunis Temple suggests that certain paint techniques were developed and used well before the 15th Century.

O,.0 based on my sources could bring minor earthquakes perhaps also satellite outages.

The sun unleashed its most powerful solar eruption in more than three years on Sunday (Nov. 29).

The solar flare, which is a sudden, bright explosion of electromagnetic energy, measured as an M4.4 on the scale astronomers use for sun storms. M-class flares are medium-sized eruptions (compared to small C-class flares and large X-class flares) and rank on a scale from 1 to 9, with larger numbers representing stronger flares.

Today, Aptera announced a solar electric vehicle that will not need to be plugged in for most regular uses, and it sports a 1,000 mile range on a full charge.

“With Aptera’s Never Charge technology, you are driven by the power of the sun. Our built-in solar array keeps your battery pack topped off and anywhere you want to go, you just go,” says co-founder Chris Anthony. Aptera says they will achieve this by making the vehicle as efficient as possible, allowing the relatively low amount of energy one can get from solar panels to do a lot more than it could for other electric vehicles.

The biggest thing Aptera does that others don’t is optimize the vehicle for low drag. With an airplane-like design and only three wheels, the car has a drag coefficient of just 0.13. To put this in perspective, a Tesla Model S has a drag coefficient of 0.24. With less “wind resistance,” travel at all speeds requires less energy, with the effect of saving more energy compared to normal cars increasing as the car goes faster. Aptera plans to do this while still having a 100 kWh battery pack, so the car will have great range.

Pacific Gas and Electric said it may soon implement another round of Public Safety Power Shutoffs due to forecast high winds.

The latest shutoff would impact about 96,191 customers in 16 counties.

Transmit Electricity wirelessly and surprise everyone. Make your own Tesla tower to transmit power wireless. The tower uses a tesla coil that is based on the concept of Electromagnetic force and resonance to transmit energy.
However, it doesn’t actually transmit electricity, all it does is excite the electrons on the walls of fluorescent or neon lights to make them glow.

For principle of operation and material links visit:
https://www.instructables.com/id/How-to-Make-a-Mini-Tesla-Tower/

Continue reading “How to make Tesla Tower at home” »

Radar and LiDAR have been incredibly quick and effective tools for mapping and surveying the Earth’s surface from aircraft and satellites, but while they can deliver accurate readings through cloud and even forest canopy cover, they can’t tell you what’s below the surface of the sea. Seawater absorbs far too much of the signal.

Sonar remains the most effective way to map out the sea floor – but the vast majority of the oceans that form 70 percent of the Earth’s surface remain unmapped, because sonic waves have hitherto only been able to be sent out from underwater. Sound waves sent from air into water lose more than 99.9 percent of their energy in the translation; it’s why the outside world goes so wonderfully silent when you dive down to the bottom of the pool. The meagre remaining 0.1 percent of the energy does create a sonar signal, but that loses a further 99.9 percent of its energy upon coming back up from the water into the air.

Continue reading “Stanford engineers invent a sonar device that works outside the water” »