3 ms·

I actually came across this video on HN a while back: https://www.youtube.com/watch?v=NQFqDKRAROI https://www.youtube.com/watch?v=NQFqDKRAROI It explains the e

by tombh 4y ago

I actually came across this video on HN a while back: https://www.youtube.com/watch?v=NQFqDKRAROI https://www.youtube.com/watch?v=NQFqDKRAROI It explains the extraordinary idea of using the sun as a gravitational lens.