Posted on 07/20/2021 7:50:23 AM PDT by Red Badger
Summertime means it’s time to play ball! But what would it be like to play ball on various locations across our Solar System? Planetary scientist Dr. James O’Donoghue has put together a fun animation of how quickly an object falls on to the surfaces of places like the Sun, Earth, Ceres, Jupiter, the Moon, and Pluto.
The animation shows a ball dropping from 1 kilometer to the surface of each object, assuming no air resistance. You can compare, for example, that it takes 2.7 seconds for a ball to drop that distance on the Sun, while it takes 14.3 seconds Earth.
“This should give an idea for the pull you would feel on each object,” O’Donoghue said.
But what about the pull of gravity on the big planets vs. Earth? Interestingly enough, it takes and 13.8 seconds for the ball to drop on Saturn, and 15 seconds on Uranus.
“It might be surprising to see large planets have a pull comparable to smaller ones at the surface,” O’Donoghue said on Twitter. “For example Uranus pulls the ball down slower than at Earth! Why? Because the low average density of Uranus puts the surface far away from the majority of the mass. Similarly, Mars is nearly twice the mass of Mercury, but you can see the surface gravity is actually the same… this indicates that Mercury is much denser than Mars.”
Ceres comes in at the pokiest place to play ball, with a ball dropping 1km in 84.3 seconds.
O’Donoghue, along with input from astronomer Rami Mandow, used a NASA planetary fact sheet for reference to create the video.
O’Donoghue also referenced one of the most famous gravity experiments ever conducted, the one by astronaut Dave Scott on the Moon:
If you drop a feather and a hammer on the Moon from the same height at the same time, both land simultaneously. This is because without significant air resistance, all objects fall at the same rate (regardless of mass)
? Apollo 15 Commander David Scott pic.twitter.com/wC6dg8QgdL
— Dr. James O'Donoghue (@physicsJ) July 11, 2021 O’Donoghue has a number of great videos on his YouTube channel, including a visualization of the velocities required to escape the pull of gravity from various bodies in the Solar System.
VIDEO AT LINK.........................
It was a very funny movie, a kinda spoof on ‘Professional Wrestling’. ................
I have seen that, it’s just been a long time.
Gravity sucks no matter what planet you are on. It’s just that some planets suck less than others.
Air...AIR.
Not methane. Not CO2. Not hydrogen. Not helium. Good old air comprising 78.08% nitrogen & 20.95% oxygen.
No other planet has “air.”
Also taken into consideration it would be crushed flat disovled by acid then burnt to a crisp might not be anything left to hit the surface lol 😂😂😂😆
“also : the equivalent mix of gases on another planet”
Harrumph...what do Merriam and Webster know? They acceded to popular but misguided usage.
“It’s a beautiful thing, the destruction of words.”
― George Orwell, 1984
And yet another law for the biden clown posse to repeal!
The video of the astronaut has gotta be the worse found.
You cannot even determine which sound stage it was filmed on....
Planet Kamala is off the charts then
Don’t think Saturn actually has a surface we could “stand” on. I think it’s a big ball of gasses... But the chart says the surface was defined as where the pressure of the gasses present was equal to 1 bar (same as atmospheric pressure on Earth at sea level)
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.