05:07
Making filthy water drinkable - short version
02:52
The 20. century was relatively peaceful!
02:53
Space travel by distorting space
02:26
Opening a portal to another universe
03:47
Faster than light travel: Using wormholes
02:58
Ken Miller refutes the irreducible complexity of mousetraps
14:52
Why the universe probably is "flat"
01:33
Can we read minds?
01:55
When will a computer surpass the human brain?
03:33
Looking into the brain with new tools
06:05
Jeffrey Sachs talking about infrastructure in Africa and trade barriers
09:57
Solar power is taking over
05:12
Can we get the ocean to absorb more CO2? A possible way to fix the climate.
02:55
Can we take CO2 back from the atmosphere? Part 2
09:43
Can we take CO2 back from the atmosphere?
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