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Wow. amazing!!! :D
Also amazing :
[quote]Creola Katherine Johnson (née Coleman; August 26, 1918 – February 24, 2020) was an American mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights.
During her 33-year career at NASA and its predecessor, she earned a reputation for mastering complex manual calculations and helped pioneer the use of computers to perform the tasks. The space agency noted her "historical role as one of the first African-American women to work as a NASA scientist".
[b][c=008099]Johnson's work included calculating trajectories, launch windows, and emergency return paths for Project Mercury spaceflights, including those for astronauts Alan Shepard, the first American in space, and John Glenn, the first American in orbit, and rendezvous paths for the Apollo Lunar Module and command module on flights to the Moon. Her calculations were also essential to the beginning of the Space Shuttle program, and she worked on plans for a mission to Mars. She was known as a "human computer" for her tremendous mathematical capability and ability to work with space trajectories with such little technology and recognition at the time.[/c][/b]
In 2015, President Barack Obama awarded Johnson the Presidential Medal of Freedom. In 2016, she was presented with the Silver Snoopy Award by NASA astronaut Leland D. Melvin and a NASA Group Achievement Award. She was portrayed by Taraji P. Henson as a lead character in the 2016 film Hidden Figures. In 2019, Johnson was awarded the Congressional Gold Medal by the United States Congress. In 2021, she was inducted posthumously into the National Women's Hall of Fame.
[/quote]
So, if any of you have not yet seen Hidden Figures, what the devil are you waiting for? :D GO!!! :D <3
[b][c=003BB2]https://en.wikipedia.org/wiki/Katherine_Johnson[/c][/b]
Also amazing :
[quote]Creola Katherine Johnson (née Coleman; August 26, 1918 – February 24, 2020) was an American mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights.
During her 33-year career at NASA and its predecessor, she earned a reputation for mastering complex manual calculations and helped pioneer the use of computers to perform the tasks. The space agency noted her "historical role as one of the first African-American women to work as a NASA scientist".
[b][c=008099]Johnson's work included calculating trajectories, launch windows, and emergency return paths for Project Mercury spaceflights, including those for astronauts Alan Shepard, the first American in space, and John Glenn, the first American in orbit, and rendezvous paths for the Apollo Lunar Module and command module on flights to the Moon. Her calculations were also essential to the beginning of the Space Shuttle program, and she worked on plans for a mission to Mars. She was known as a "human computer" for her tremendous mathematical capability and ability to work with space trajectories with such little technology and recognition at the time.[/c][/b]
In 2015, President Barack Obama awarded Johnson the Presidential Medal of Freedom. In 2016, she was presented with the Silver Snoopy Award by NASA astronaut Leland D. Melvin and a NASA Group Achievement Award. She was portrayed by Taraji P. Henson as a lead character in the 2016 film Hidden Figures. In 2019, Johnson was awarded the Congressional Gold Medal by the United States Congress. In 2021, she was inducted posthumously into the National Women's Hall of Fame.
[/quote]
So, if any of you have not yet seen Hidden Figures, what the devil are you waiting for? :D GO!!! :D <3
[b][c=003BB2]https://en.wikipedia.org/wiki/Katherine_Johnson[/c][/b]
Piper · 61-69, F
What a cool picture, and I don't remember seeing it before. I just recently watched the movie based on the Apollo 13 mission, for the first time. I do realize that movies based on actual events generally take many 'liberties' with the reality of them...but it [i]is[/i] good movie, I think.
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ChipmunkErnie · 70-79, M
DrWatson · 70-79, M
@ChipmunkErnie Actually, I have been very excited by space exploration since then.
It has been done without sending people, to be sure, but we have been to all the planets ,many of their moons, and a few asteroids and comets. I have found the photos breath-taking.
Sending people means sending life support systems, which makes the craft heavy and expensive. And the amount of science to be learned from astronauts landing at one site and staying for a few days is limited, compared to a long-term robotic lander or even an orbiter, given the kinds of instruments that are available now.
It has been done without sending people, to be sure, but we have been to all the planets ,many of their moons, and a few asteroids and comets. I have found the photos breath-taking.
Sending people means sending life support systems, which makes the craft heavy and expensive. And the amount of science to be learned from astronauts landing at one site and staying for a few days is limited, compared to a long-term robotic lander or even an orbiter, given the kinds of instruments that are available now.
PhoenixPhail · M
I don't see how that picture could have been taken on the moon. There's no atmosphere there to diffuse light, so anything that's not exposed to direct light should appear totally black. That's not the case here.
PhoenixPhail · M
@DrWatson We see the surface of the Moon via the Sun shining directly on it and being reflected back to Earth. But anything in shadow is shown as completely black. That shadow may appear lighter on Earth because the light is passing through the Earth's atmosphere, which blends it. But on the Moon, shadow would be completely black.
By the way, the vacuum of space is only relative to the atmospheric pressure on Earth, which is approximately 14.7 pounds per square inch at sea level. You have that pressure on the inside of every cell in your body as well as on the outside. It's equalized. So, space isn't really a vacuum. We're pressurized.
By the way, the vacuum of space is only relative to the atmospheric pressure on Earth, which is approximately 14.7 pounds per square inch at sea level. You have that pressure on the inside of every cell in your body as well as on the outside. It's equalized. So, space isn't really a vacuum. We're pressurized.
ChipmunkErnie · 70-79, M
@PhoenixPhail Yes, and space isn't zero-gravity, it's micro-gravity, etc., etc. etc, all of which ignored that light reflects off solids, liquids, gases, plasma, and so when it hits the surface of the moon it would reflect in all directions, depending on the angle at which it hits the surface particles. Or are you really trying to claim the photo is a fake and that isn't what the moon actually looks like?
DrWatson · 70-79, M
@PhoenixPhail Oh, I see. Sorry, I misunderstood what you were saying.
yes, shadows are completely black on the moon. On the other hand, there is uneven elevation, so at low sun angles, there are patches of light within the shadows, as higher pieces of ground catch the sun. And those pieces of ground can be very tiny patches.
i look at the moon through a telescope quite often and see this. (Although not at the resolution of this photo, of course.)
In the picture, that shadow in the foreground looks as black as the sky does .
yes, shadows are completely black on the moon. On the other hand, there is uneven elevation, so at low sun angles, there are patches of light within the shadows, as higher pieces of ground catch the sun. And those pieces of ground can be very tiny patches.
i look at the moon through a telescope quite often and see this. (Although not at the resolution of this photo, of course.)
In the picture, that shadow in the foreground looks as black as the sky does .
Mamapolo2016 · F