Public Works for the 21st Century
We stand at a fork in the road: maintaining our (reluctant?) empire is tempting; refocusing our energies on the American project is the right choice. Neither a neo-isolationism nor a new New Deal, we can make the well-being of America, its infrastructure, its social relations (including education and the elimination of poverty), its health (from food production to the medical system) and rededication to its ideals, especially in international relations our focus and priority.
Here's the science of black holes, from supermassive monsters to ones the size of ping-pong balls.
- Bonus fact: If the Earth became a black hole, it would be crushed to the size of a ping-pong ball.
From time-traveling billiard balls to information-destroying black holes, the world's got plenty of puzzles that are hard to wrap your head around.
- While it's one of the best on Earth, the human brain has a lot of trouble accounting for certain problems.
- We've evolved to think of reality in a very specific way, but there are plenty of paradoxes out there to suggest that reality doesn't work quite the way we think it does.
- Considering these paradoxes is a great way to come to grips with how incomplete our understanding of the universe really is.
- The EAST reactor was able to heat hydrogen to temperatures exceeding 100 million degrees Celsius.
- Nuclear fusion could someday provide the planet with a virtually limitless supply of clean energy.
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