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Helio
replied to the thread
Climate change and polar ice melting could be impacting the length of Earth's day
.
It seems likely that the rebound would be slow in accord with slow melting. If a vast, mile-thickness glacier, however, were to vanish...
Mar 30, 2024
Helio
reacted to
Unclear Engineer's post
in the thread
Climate change and polar ice melting could be impacting the length of Earth's day
with
Like
.
Earth's rotation can be measured against "fixed" stars - stars that do not appear to move from Earth's perspective - at least not in an...
Mar 30, 2024
Helio
reacted to
Ken Fabian's post
in the thread
Climate change and polar ice melting could be impacting the length of Earth's day
with
Like
.
That was not what I was pointing out - the sea level fall around where ice mass is lost is due to reduced local gravity from the reduced...
Mar 30, 2024
Helio
replied to the thread
Climate change and polar ice melting could be impacting the length of Earth's day
.
There is a group, which a quick search didn't find, that uses quasars since their great distance gives greater accuracy. There is also...
Mar 29, 2024
Helio
reacted to
Unclear Engineer's post
in the thread
Climate change and polar ice melting could be impacting the length of Earth's day
with
Like
.
This whole subject of ice sheet effects on Earth's rotation is something that I have been asking about for over 2 decades, but mostly my...
Mar 29, 2024
Helio
reacted to
billslugg's post
in the thread
Climate change and polar ice melting could be impacting the length of Earth's day
with
Like
.
"ice sheet mass loss causes sea levels nearby to fall due to local gravity effects" This statement does not refer to isostatic rebound...
Mar 29, 2024
Helio
replied to the thread
Climate change and polar ice melting could be impacting the length of Earth's day
.
Yes. There are areas where the reduction of ice mass due to melting causes a rise in the land, which distorts the real sea level rise...
Mar 28, 2024
Helio
replied to the thread
Climate change and polar ice melting could be impacting the length of Earth's day
.
It would be interesting to see the data on Earth's rotation rate. There is a group that uses quasar positions to find millisecond...
Mar 27, 2024
Helio
replied to the thread
Fake solar eclipse glasses are everywhere ahead of the total solar eclipse. Here's how to check yours are safe
.
Is there an easy way to test for UV transmittance?
Mar 25, 2024
Helio
replied to the thread
6 reasons why the 2024 total solar eclipse could be the best eclipse for hundreds of years
.
Perhaps this will surprise some... It shows the umbral (shadow) speed along the surface of the Earth. [These extreme variations are...
Mar 25, 2024
Helio
replied to the thread
6 reasons why the 2024 total solar eclipse could be the best eclipse for hundreds of years
.
Here's an updated "Things to See During an Eclipse". I read that Shadow Banding is due to the effect of turbulence on the more narrow...
Mar 25, 2024
Helio
replied to the thread
Fake solar eclipse glasses are everywhere ahead of the total solar eclipse. Here's how to check yours are safe
.
It's my understanding that retina damage is often permanent. The UV is the worst but even IR can damage the retina. The ISO for IR...
Mar 25, 2024
Helio
replied to the thread
Fake solar eclipse glasses are everywhere ahead of the total solar eclipse. Here's how to check yours are safe
.
Well, the ineffective fake ones would likely block enough sunlight so that the user would quickly see that the Sun is too stinking...
Mar 25, 2024
Helio
replied to the thread
Fake solar eclipse glasses are everywhere ahead of the total solar eclipse. Here's how to check yours are safe
.
Good advise. Faulty glasses could easily be a problem. I did find the ISO standards: here The Maximum visible range in the ISO...
Mar 25, 2024
Helio
reacted to
Admin's post
in the thread
Fake solar eclipse glasses are everywhere ahead of the total solar eclipse. Here's how to check yours are safe
with
Like
.
With two weeks until April 8's total solar eclipse, the American Astronomical Society is warning buyers about unsafe and counterfeit...
Mar 25, 2024
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