Lasers

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Tag archives for Lasers

How Alien Can a Spacefarer Be?

As our planet makes more and more noise, we can’t help but wonder why no one is paying attention. Are we alone in the universe? Or alone in our desire to discover new worlds? PZ Myers says “Spaceship building is never going to be a selectively advantageous feature — it’s only going to emerge as…

Perovskite solar cells can not only emit light, they can also emit up to 70% of absorbed sunlight as lasers. Critical signaling molecules can be used to convert stem cells to neural progenitor cells, increasing the yield of healthy motor neurons and decreasing the time required to grow them. Mexican blind cavefish are so close…