Why I'm Hot for Solar
I feel quite strongly that solar power will be the single largest source of electricity generation by mid-21st century. In fact, just a simple extrapolation of the growth of solar power tells us it will be for sure.
Consider that the earth is almost entirely solar-powered today and the fact that we’re not a frozen ice ball at, say, 4 degrees kelvin, it’s due to the sun. And the whole ecosystem is powered by the sun.
There’s just an itty bitty amount of energy that we need to do complicated human things. It’s a tiny amount of energy compared to what the sun puts on the earth every day. And we just need to capture a little bit of that and turn it into electricity. But we need to accelerate that process as well because we have an unpriced externality in the effects of carbon fuels, and even to some degree, uranium and other fossil materials.
So we have to try to accelerate that with innovation. That’s what SolarCity is about.
Universities claim to prepare students for the world. How many actually do it?
- Many university mission statements do not live up to their promise, writes Ben Nelson, founder of Minerva, a university designed to develop intellect over content memorization.
- The core competencies that students need for success—critical thinking, communication, problem solving, and cross-cultural understanding, for example—should be intentionally taught, not left to chance.
- These competencies can be summed up with one word: wisdom. True wisdom is the ability to apply one's knowledge appropriately when faced with novel situations.
This is what the world will look like, 250 million years from now
To us humans, the shape and location of oceans and continents seems fixed. But that's only because our lives are so short.
SpaceX's momentous Crew Dragon launch is a sign of things to come for the space industry, and humanity's future.
- SpaceX was founded in 2002 and was an industry joke for many years. Eighteen years later, it is the first private company to launch astronauts to the International Space Station.
- Today, SpaceX's Crew Dragon launched NASA astronauts Bob Behnken and Doug Hurley to the ISS. The journey will take about 19 hours.
- Dylan Taylor, chairman and CEO of Voyager Space Holdings, looks at SpaceX's journey from startup to a commercial space company with the operating power of a nation-state.
A new study may help us better understand how children build social cognition through caregiver interaction.
Researchers at UT Southwestern noted a 47 percent increase in blood flow to regions associated with memory.