First, activate the disgronificator, then turn the circuit breaker all the way off, and then back on.
Posted on 05/25/2017 6:40:42 AM PDT by BenLurkin
NASA managers ordered the spacewalk over the weekend when a computer unit known as multiplexer-demultiplexer-1 (MDM-1) unexpectedly failed Saturday morning, May 20 at 1:13 p.m. Central time.
The cause of the MDM failure is not known, says NASA. Multiple attempts by NASA flight controllers to restore power to the MDM-1 relay box were not successful.
The US dynamic duo successfully changed out the MDM computer relay box with a spare unit on board the station. They also installed a pair of antennas on the station on the U.S. Destiny Laboratory module to enhance wireless communication for future spacewalks.
The MDM functions as a data relay box and is located on the S0 truss on the exterior of the US segment of the ISS, thereby necessitating a spacewalk by astronaut crew members.
After NASA engineers thoroughly assessed the situation and reviewed spacewalk procedures on Sunday, May 21, they gave the go ahead for Whitson and Fischer to carry out the hurriedly arranged extravehicular activity (EVA) spacewalk on Tuesday.
Meanwhile, Whitson worked on Sunday to prepare the spare data relay box and test its components to ensure it was ready for Tuesdays swap out of the failed unit.
“The relay box, known as a multiplexer-demultiplexer (MDM), is one of two units that regulate the operation of radiators, solar arrays and cooling loops.” says NASA.
“Because each MDM is capable of performing the critical station functions, the crew on the station was never in danger and station operations have not been affected.”
(Excerpt) Read more at universetoday.com ...
It’s a coverup. The Wolowitz Zero-Gravity Waste Disposal System failed....again.
This sounds like 90s technology, so can’t blame Russian hacking
When Bowman and Poole started asking too many questions, HAL reported the imminent failure of a similar device, sending them outside and Frank Poole to his doom.
Just sayin’.
“When Bowman and Poole started asking too many questions, HAL reported the imminent failure of a similar device, sending them outside and Frank Poole to his doom.”
No. A thousand years later, Frank Poole is (was) revived.
Many failures are “unexpected”.
“Open the pod bay doors HAL”
Yeah. I thought about mentioning 3001; Final Oddyssey, but that book really wasn’t that great.
Disappointing, I agree.
First, activate the disgronificator, then turn the circuit breaker all the way off, and then back on.
That was always a hole in the story for me... If HAL was in charge of everything then he could have just opened an airlock and taken care of both of them at one, without the need for an elaborate scheme to get them outside.
It did not seem logical to me that the computer would decide to kill then and then make up an elaborate deception to do it.
You forgot to say please, Dave.
Trying to calculate how long I’d have to be in orbit before that would start looking desirable.
The book has it different than in the movie.
Poole dies from a suit breach, and then HAL does open the airlocks to try to kill Bowman.
As long as the CRM-114 Discriminator is still functioning...
“It’s a coverup. The Wolowitz Zero-Gravity Waste Disposal System failed....again”
That Russian Potato based diet strikes again.
Goes back decades before the 90s. Multiplexer-demultiplexer units are very common in telecommunications for mixing multiple threads of data. That goes out, you have lots of dependent gear going out.
“That Russian Potato based diet strikes again”
.
Yep, right up there with Mrs. Wolowitz meatloaf
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