Can We Build A Sun Screen To Combat Global Climate Change?
If emissions don’t go down, there’s still an option for combatting global warming. We just have to effectively dim the Sun. Global climate change is one…
Articles by Ethan Siegel
The Three Meanings Of E=mc², Einstein’s Most Famous Equation
It’s so much more than mass-energy equivalence; it’s the key to unlocking the quantum Universe. For hundreds of years, there was an immutable law of…
How much fuel does it take to power the world?
It’s currently billions of tonnes of fossil fuels every year. With new (or existing!) technologies, we could literally change the world. “In terms of weapons, the…