Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Mars Rover Opportunity Suffers Worrying Bouts of 'Amnesia'
discovery.com ^

Posted on 12/30/2014 12:05:57 PM PST by BenLurkin

Usually, all telemetry data is stored in the flash memory, so that when the rover powers down during the Martian night or reboots, the data remains stored — like when you turn off your digital camera, the photos remain saved to the camera’s flash card. Any data stored in the rover’s RAM, however, is lost as it shuts down.

Flash memory may be great for storing data when the rover’s electronics are powered down, “but flash memory has a limitation on how many times you can read and write to it,” Callas told Discovery News. “It ‘wears out’ with use.”

(Excerpt) Read more at news.discovery.com ...


TOPICS: Travel
KEYWORDS: mars; nasa
Navigation: use the links below to view more comments.
first previous 1-2021-23 last
To: Norm Lenhart

[ Built with a slide rule. Still works. Gotta love analog gear ;) ]

So that is where all the slide rules went, they used them to make voyager...


21 posted on 12/31/2014 12:33:39 AM PST by GraceG (Protect the Border from Illegal Aliens, Don't Protect Illegal Alien Boarders...)
[ Post Reply | Private Reply | To 9 | View Replies]

To: Norm Lenhart
I can totally believe this ‘NASA” went to Wal mart and bought a flash card for this.

Now that's just silly.

The contractor that NASA hired went to WalMart and bought some flash cards, and then charged the government $10,000 each for them.

22 posted on 12/31/2014 12:43:02 AM PST by Fresh Wind (The last remnants of the Old Republic have been swept away)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Norm Lenhart
you can guess why VF14 NOS tubes for Telefunken U47 (Sinatra style) microphones trade for thousands of dollars used.

I wonder if anyone rebuilds them.

23 posted on 12/31/2014 3:48:05 AM PST by Pontiac (The welfare state must fail because it is contrary to human nature and diminishes the human spirit.)
[ Post Reply | Private Reply | To 15 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-23 last

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.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson