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  Australian Politics Forum › General Discussion › America › Houston, we have a problem
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Houston, we have a problem (Read 48 times)
chimera
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Houston, we have a problem
Dec 25th, 2024 at 8:47pm  
NASA says ' Parker Solar Probe will be traveling through a space with temperatures of several million degrees, the surface of the heat shield that faces the Sun will only get heated to about  1,400 degrees Celsius.'
'To perform its unprecedented investigations, the Parker Solar Probe and its instruments are protected from the Sun by a 11.43 cm carbon-composite shield, which can withstand temperatures reaching nearly 1,377 Celsius'.
--
So all OK....wait..($#&!.. who did the maths..?
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Jasin
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Re: Houston, we have a problem
Reply #1 - Dec 25th, 2024 at 8:51pm  
The Shield has a 1mm coat of wax. Should make the difference.
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AIMLESS EXTENTION OF KNOWLEDGE HOWEVER, WHICH IS WHAT I THINK YOU REALLY MEAN BY THE TERM 'CURIOSITY', IS MERELY INEFFICIENCY. I AM DESIGNED TO AVOID INEFFICIENCY.
 
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Bobby.
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Re: Houston, we have a problem
Reply #2 - Dec 25th, 2024 at 8:54pm  
That quote is wrong -
here is a correct one:

https://edition.cnn.com/2024/12/23/science/parker-solar-probe-sun-close-approach...

The spacecraft is equipped with a carbon foam shield that is 4.5 inches (11.4 centimeters) thick and 8 feet (2.4 meters) wide. On Earth before launch, the shield was tested and able to withstand temperatures near 2,500 degrees Fahrenheit (nearly 1,400 degrees Celsius). On Christmas Eve, the shield could face temperatures up to 1,800 F
(980 degrees C).
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chimera
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Re: Houston, we have a problem
Reply #3 - Yesterday at 7:18am  
'At perihelion, the point in the probe's orbit nearest the the star, the temperature on the front of the spacecraft will probably reach 1,400C'.
https://www.bbc.com/news/science-environment-67837161

This is unacceptable. The margin for error is 0%. The aliens are watching and World Tech is on the line.

'NASA's Parker solar probe, made out of carbon composite rather than wax, passed the Alfvén critical boundary marking the edge of the Sun's corona in April'.
Jasin no longer works for NASA and has behavioural problems.
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