Fire from Moonlight (opens in new tab)

(what-if.xkcd.com)

2 pointsrylittle2y ago1 comments

1 comments

Having trouble wrapping my head around this...how can you not use an array of lenses to focus many images of the sun onto a single very hot image on the earths surface?

j / k navigate · click thread line to collapse

Fire from Moonlight (opens in new tab)

(what-if.xkcd.com)

2 pointsrylittle2y ago1 comments

1 comments

rylittleOP2y ago

Having trouble wrapping my head around this...how can you not use an array of lenses to focus many images of the sun onto a single very hot image on the earths surface?

j / k navigate · click thread line to collapse