Posted on 09/07/2024 1:04:50 PM PDT by MtnClimber
Explanation: Mars has two tiny moons, Phobos and Deimos, named for the figures in Greek mythology Fear and Panic. Detailed surface views of smaller moon Deimos are shown in both these panels. The images were taken in 2009, by the HiRISE camera on board the Mars Reconnaissance Orbiter spacecraft, NASA's long-lived interplanetary internet satellite. The outermost of the two Martian moons, Deimos is one of the smallest known moons in the Solar System, measuring only about 15 kilometers across. Both Martian moons were discovered in 1877 by Asaph Hall, an American astronomer working at the US Naval Observatory in Washington D.C. But their existence was postulated around 1610 by Johannes Kepler, the astronomer who derived the laws of planetary motion. In this case, Kepler's prediction was not based on scientific principles, but his writings and ideas were so influential that the two Martian moons are discussed in works of fiction such as Jonathan Swift's Gulliver's Travels, written in 1726, over 150 years before their discovery.
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It looks like a potato that could be cut up into french fries with a cheeseburger order.
Like a grain of sand, been polished by millions of collisions?
12.5 km average circumference. Good place to practice running a half marathon. Might need extra oxygen.
Bring your own gravity.
It might be small enough to launch yourself into orbit with a long jump.
Deimos’s escape velocity is only 5.8 m/s. A stone dropped from waist height would take around 30 seconds to reach the ground.
Space motor home.
You could throw rocks from Deimos have them fall on Mars. Hint: throw them in the direction Deimos came from.
Mmmmmmm . . . cheeseburger and fries . . .
Oh great. Now I’m going to have to go grab some grub because I can’t cook worth squat. :-)
I always knew that deep down inside, you love cheeseburgers, too.
This was an early attempt at bowling balls. The finger holes weren’t deep enough, and the triagular shape made the ball very unpredictable.
Live and learn.
Jonathan Swift and the moons of Mars
David Darling
https://www.daviddarling.info/encyclopedia/S/Swift.html
How did Jonathan Swift predict mars moon speeds?
Ian_Brooks
June 24, 2009
https://www.physicsforums.com/threads/how-did-jonathan-swift-predict-mars-moon-speeds.321709/
My first encounter with this was here:
Jonathan Swift and the Moons of Mars
Ken D. Moss
Kronos vol.0804
Summer 1983
The USNO’s 26” refractor telescope was used to discover those two moons. I wonder if the current resident has even bothered to look thru it. I would love to be vice president just to live on the grounds and look through that beast.
There was a sci fi story where explorers found the third moon that was at such a low altitude that it cut through mountains.
Three moons
phobos
demos
bottom most
Looks like cheese.
Its orbital velocity would then be 5.8 m/2 divided by the square root of 2.
So, about 4.1 m/s. Or roughly 10 miles per hour.
Doable.
Regards,
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