Nonsense Thread

[2mAn]

Kinda. The Sun is 92m miles away, speed of light is 186k miles/sec (both rounded), if you do the math it's about 8 minutes. Based on that, here's another fun fact: If the Sun were to explode we would see the flash in about 8min, but the pressure wave would take 13yrs to actually reach us. I now, I am a nerd.

We'd be dead way before that pressure wave hits us... but how long after the 8 minutes we see it explode?

[MrBurgundy]

We'd be dead way before that pressure wave hits us... but how long after the 8 minutes we see it explode?

8 mins

[ForcedFirebird]

We would SEE it in 8min after detonation, but years for the pressure wave. Without going into a lot if thought, we would probably be dead in the same 8min since the Earth's magnetic field would be overpowered by the non visible radio active particles that still have the ability to travel at light speed.

People don't realize how large the cosmos is. If Earth was the size of a marble, the sun would be a beach ball, the solar system would be seven miles across at that scale (only including planets, not the Ort cloud).

[ForcedFirebird]

https://youtu.be/O_MZ8tda_1I

[2mAn]

8 mins

I dont think we'd die immediately after seeing it explode... but not long after

[TeXJ]

so if we see it explode 8 mins later, then that would mean that there would be no more sun thus no more light...then the moon would also disappear...

[ForcedFirebird]

I dont think we'd die immediately after seeing it explode... but not long after

Seeing a solar flare caused the blackout in the Quebec, pretty sure a Nova would destroy us in short order. The Earth magneto can only deflect so much radiation, hence the Northern Lights. Seeing it took 2 days for the Quebec blackout to happen after a solar flare in 1989, doubt we would be around much longer than that (quite memorable since that the year I moved to FL from New England). I mentioned the shock wave just because it's a fun thought experiment to show just how far away the Sun is, and how fast light (as well as radio, gamma, x rays etc) travels. The Moon is 240k miles from earth and it took the Apollo 3 days to get there traveling 24k mph, going to the Sun at that speed is something like 11yr.

There was a solar flare in the 1800's where entire telegraph infrastructure was shorted out, even causing fires int he Northern Hemisphere. Something like that today would wipe out every electronic device in it's path, including satellites.

[The Dark Side of Will]

There would still be PLENTY of light... Novas/Supernovas are extremely bright. There would be so much light that everything on earth would cook or just be radiated to death.

[2mAn]

Yea pitch black. likely get extremely cold. Probably fairly quick too (I was responding to TexJ)

[ForcedFirebird]

OMG the posts coming in bout this subject are not in order, and funny to read. Yes, Will, more than just "light" in conventional thinking of visible light. Basically it would be a giant microwave oven.

[LowR3V'in]

[The Dark Side of Will]

Yea pitch black. likely get extremely cold. Probably fairly quick too (I was responding to TexJ)

A supernova remnant is typically a white dwarf, so there would still be light/heat for the Earth after the supernova. It's just that by that time the Earth would be a scorched cinder like Mercury is now.

[The Dark Side of Will]

OMG the posts coming in bout this subject are not in order, and funny to read. Yes, Will, more than just "light" in conventional thinking of visible light. Basically it would be a giant microwave oven.

Solar flux at the Earth's orbit would jump from 1500 W/m^2 to... 10,000+? 100,000? Everything would just cook.

[roguetoaster]

This nova stuff is silly. Our sun would first begin to physically expand, possibly to the orbit path of earth, but also possily altering the orbits of the planets, mind you it will probably take about 5B years to start this and another 5B to expand fully. If earth is somehow not destroyed or released from orbit it the sun would then collapse, probably rapidly, and over the next .5B years would probably become one of several types of dwarf stars.

That's of course forgetting that the sun does not presently contain sufficient mass to go nova (we think) in any case, and ignoring how humanity probably won't even last another %.5 of the sun's current phase time.

[Melon]