einfach_orangensaft@feddit.de to NonCredibleDefense@sh.itjust.worksEnglish · 10 months agoThe Math would add upfeddit.deimagemessage-square104fedilinkarrow-up1473arrow-down123
arrow-up1450arrow-down1imageThe Math would add upfeddit.deeinfach_orangensaft@feddit.de to NonCredibleDefense@sh.itjust.worksEnglish · 10 months agomessage-square104fedilink
minus-squaredeegeese@sopuli.xyzlinkfedilinkEnglisharrow-up29·10 months agoThe suns angular diameter is about 0.01 radian, so at a distance of 100km, the suns reflection will spread out to a disc about 1km across. 392MW over a disc that size is 500w/m2, which is weaker than direct sunlight.
minus-squareIlovethebomb@lemm.eelinkfedilinkEnglisharrow-up5·10 months agoThey can aim each mirror individually though.
minus-squaredeegeese@sopuli.xyzlinkfedilinkEnglisharrow-up1·10 months agoAnd each one makes a 1km2 spot. It’s not the aiming, it’s that the sun is not a point source.
The suns angular diameter is about 0.01 radian, so at a distance of 100km, the suns reflection will spread out to a disc about 1km across.
392MW over a disc that size is 500w/m2, which is weaker than direct sunlight.
They can aim each mirror individually though.
And each one makes a 1km2 spot.
It’s not the aiming, it’s that the sun is not a point source.