Gravity at the event horizon is inversely related to the mass of the black hole. So for a supermassive black hole, gravity at the event horizon can be weak. But you still can't escape because it's too large.
Imagine light trying to escape the Earth's gravity. Its path is slightly deviated by the Earth, then it gets far enough away that the Earth has little further effect.
Now suppose at that distance, it still experienced the same gravity. So the trajectory of light is deviated a little more. It keeps moving farther away but gravity barely changes, even at huge distances. Eventually all those little deviations add up and it's going back where it came from. Light can't escape. It's a black hole.
The Biden administration is on trial in the United States for failure to prevent the “unfolding genocide” in Gaza. On Friday, lawyers for the Biden administration argued the court lacks the proper jurisdiction to decide the case, while Palestinians and Americans testified about atrocities committed by Israel with American...
The MTD is one of the first things that a judge needs to decide, and it was argued by the government at that hearing:
It is not the court’s role to sit in judgment of U.S. foreign policy decisions concerning the conflict in Gaza or to assess whether Israel has transgressed limits imposed by international law
Right after that quote in the article, you can find a link to the full MTD.
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It’s about relative temperature, not absolute temperature.
Normally sea surface temperatures in the western Pacific are warmer than those in the Eastern Pacific. During El Niño years the water in the Central and Eastern Pacific becomes as warm as the Western Pacific.
I often hear science-adjacent folks stating that a tree needs to be 30 years old before it starts absorbing CO₂, usually paired with the statement that it’s therefore pointless to start planting tons of trees now for slowing climate change....
Probably because the writer is not reporting her own original research. She is reporting work done by others, they often used metric, and any metric units were converted to common US units because the article was intended for a general American audience.
And why isn’t there a button to restore the original metric units? Same reason why when a newspaper reports a translated quote from Macron or Putin or Xi, there is usually no button to restore the original French or Russian or Chinese: the editor decided that it wasn’t necessary for the intended audience.
Is there a temperature so hot that relativistic effects are noticeable?
Given a writing speed of one logical symbol per planck time, would the amount of time it takes to write Rayo's Number exceed Rayo's Number?
Palestinians Charge Genocide in U.S. Court; Biden, Blinken Sued for Backing Israel’s War on Gaza ( www.democracynow.org )
The Biden administration is on trial in the United States for failure to prevent the “unfolding genocide” in Gaza. On Friday, lawyers for the Biden administration argued the court lacks the proper jurisdiction to decide the case, while Palestinians and Americans testified about atrocities committed by Israel with American...
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[Solved] Trees supposedly take 30 years *before* they absorb CO₂. Why?
I often hear science-adjacent folks stating that a tree needs to be 30 years old before it starts absorbing CO₂, usually paired with the statement that it’s therefore pointless to start planting tons of trees now for slowing climate change....