In Place at Ground Zero

We’re here. Ground zero. The sky will go dark.

But will a cloud cover the eclipse?

The latest forecast ranges from “partly cloudy” to “partly sunny”. Even if all the sky were clear but one cloud, and that cloud covered the eclipse for that brief time, it would still be a disappointment that could not be resolved.

What would happen if I was slowly sinking in a cylinder full of water, and then the water was dropped all at the same time? What would happen to me?

You would be weightless in a bunch of weightless water until the cylinder hit the ground. The behavior of water in a weightless environment is much different than in a non-weightless environment.

See Weightless Water.

How could it change the science of an alien civilization with the science we have developed?

How would an alien civilization change if they met us? It would forever change both their and our civilizations much as the recently discovered Brazilian tribe pictured below will be forever changed by modern mankind, which they didn’t even know existed until fairly recently. The photo is an aerial shot. No one has met these people yet.
Brazilian-Tribe

Do you believe in aliens? Do you agree that our modern technologies were taught by them?

Do I believe in aliens from outer space? Definitely yes.

Do I believe they have visited Earth, definitely no. Distances are far too vast for travel in either direction.

The idea that modern technologies were invented by visitors from space is really a silly idea because if you simply study where all these technologies came from you’ll see they gradually evolved from simple inventions to more complex inventions to the point we are at now. Just watch Modern Marvels if you don’t want to do an Internet search.

Should we launch into a serious attempt to protect ourselves from dangerous aliens, whether hostile or non-hostile (prohibition of gigantically powerful broadcasts, global camouflage, hugely improved military technology, space-war games, or so on)?

No. Simply because of distance.

All of this alien nonsense does not take into account that the nearest star is four light years away. It is such a great distance that traveling at the fastest speed possible it would take at least 150 years each way to traverse. Other stars are many, many more light years. 40 light years would take 1,500 years to traverse, that is where the Trappist-1 system is which is the next best candidate for “Earth-size” planets to exist.

Traveling at light speed is impossible, both for us and for aliens. I’m sorry to say, it is unlikely we’ll ever know for sure if intelligent life exists elsewhere, and if it does, it is unlikely they will ever know we exist.

trapist1