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May 24th, 2022, 09:59 PM

tk421 replied to a thread About the big bang theory in General Discussion

It's not clear what you're going on about. It seems that you may be wondering why not all objects in the universe are at the same temperature. Is...

3 replies | 128 view(s)

May 24th, 2022, 06:12 PM

Double Helix replied to a thread Planning an Earth Invasion? in Science-Fiction and Non-Fiction

In the vacuum of space, there should be no resistance to flight. No air to slow you down. So in theory you should be able to cruise free of...

13 replies | 223 view(s)

May 24th, 2022, 05:24 PM

geordief replied to a thread A new type of sexual relations? in Biology

This sort of thing? https://youtu.be/NAEDVsrKk5s

1 replies | 44 view(s)

May 24th, 2022, 03:09 PM

Stanley514 started a thread A new type of sexual relations? in Biology

Sea horses have unusual behaviour when female fertilizes male and male carries offsprings and give birth to them. I wonder, will be there ever time...

1 replies | 44 view(s)

May 24th, 2022, 01:05 PM

zinjanthropos replied to a thread Planning an Earth Invasion? in Science-Fiction and Non-Fiction

Is it necessary to keep propulsion system on if you’ve attained your maximum velocity in deep space? Hate to use the word ‘glide’ here but couldn’t...

13 replies | 223 view(s)

May 24th, 2022, 11:05 AM

Double Helix replied to a thread Planning an Earth Invasion? in Science-Fiction and Non-Fiction

It seems that the time issue is not a problem as long as all ships have same speed at all times and use same course. All should by synchronized in...

13 replies | 223 view(s)

May 24th, 2022, 10:45 AM

zinjanthropos replied to a thread Planning an Earth Invasion? in Science-Fiction and Non-Fiction

Not comfortable with this subject…..If I invaded Earth with an armada of spaceships would I have to worry about time dilation? If the ships left home...

13 replies | 223 view(s)