Photo Credit: Courtesy Image
Not to be picky... but...
Whenever artists show meteor or comet impacts, they invariably show the incoming body “burning” brightly many hundreds or thousands of miles up in altitude.
This does not occur in sweet reality. The “burn” begins well UNDER 100 miles up. The burn only lasts very briefly, because the objects are moving very, very fast, indeed. Tens of thousands of miles an hour. Many miles a second.
From the beginning of the burn to impact is a matter or only a few seconds at most. During that time, the heat of entering the atmosphere is both sudden and extreme — which is one reason why so very much heat energy is liberated and why the objects often explode with a colossal blast. The deceleration in Gs is fabulous. Thousands of Gs is a force like hitting a brick wall.
To me, this seems even more awe-inspiring than the long burn depiction.
Picky, I know — but the real effect is truly amazing.
Hope you never see one!
Now That’s global warning!
I haven’t seen an explanation for the evidence that there was cooling in the northern hemisphere and warming in the southern in the same time frame.
So the world got much hotter, then an ice age occurred because of the dust particles. Then it gradually moved back to the world as it was. We still have a long way to go before the world gets back to its natural hotter state.
But there are scientists who, with the government funding, are trying to change the world back to the way it was. Not the way it was 14,000 years ago. They want it to be the way it was when they were young. They were born into the world and they want to preserve the world in a state of frozen animation, like some super park rangers. There are groups that want to cover the ice sheets in gigantic clothe sheets. There are scientists that want to shoot clouds of tiny iron particles into the upper atmosphere to reflect the suns rays. Nothing could go wrong there, right?
The world has gotten far hotter than it is now. And its been far colder. Our scientists should watch it. But changing it or claiming they understand it, is crazy. Nobody is able to come to a stupid conclusion faster than a scientist with an ego, or a scientist looking for funding.
If you want to understand the vagaries of the earth’s climate then serious geologists are the ones to listen to...not Al Gore class frauds and poseurs.
