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Cracker-Size Satellites To Launch With Endeavour
Obfiscator writes with news of the upcoming deployment of satellite-on-a-chip devices measuring just 3.8cm x 3.8cm x 0.2cm. The satellites are set to launch with Endeavour on its final flight.
"These three miniature satellites are being launched as a proof-of-concept. As such, they're being deployed in very low orbit, and should return to earth fairly quickly in order to avoid becoming dangers for other satellites. 'They each contain seven solar cells, a microprocessor, an antenna and amplifier, power storage in capacitors, and switching circuitry to turn on the microprocessor when the stored energy is enough to create a single radio-frequency emission.' Due to their size, atmospheric drag would slow them down without burning them up, allowing them to study the uppermost atmosphere of wherever they are deployed next: Venus, Titan, Europe, and Jupiter are all possibilities."
Can't they sample the atmosphere over Europe with meteorology balloons?
I refuse to believe corporations are people until Texas executes one. -- desert rain on http://www.dailykos.com/user/
Do they expect Europe to have a different atmosphere than the rest of the world?
Except Europe. Attempt no landing there.
Damn! I completely forgot the tags. I guess some folks really need it.
I refuse to believe corporations are people until Texas executes one. -- desert rain on http://www.dailykos.com/user/
Oooops, first step to the Matrioska Brain! https://secure.wikimedia.org/wikipedia/en/wiki/Matrioshka_brain
At least they didn't use a white guy as their stock art...
Because, you know, the surface of a Triscuit would be pretty much perfect for a solar cell? Uh-oh... is Sladhdot gonna receive a takedown notice now because I called 'em that?
When reached at his home earlier this afternoon, Chris Rock declined to comment.
These things will cool down quickly up there. What's in their design that they can keep operating?
Bert
How big is a cracker? Kinda pasty white colored tall thing...about 165lbs?
That's "European-American-Size", you insensitive clod!
Here's my story submission which according to slashdot logs I submitted on Thursday, April 28@1:25am. I assume this was just an oversight on the part of the editors, no problem, I just wanted to bring up the larger (smaller?) issues regarding having spacecraft design directly coupled to the exponentially increasing (decreasing?) semiconductor fabrication industry which has been in progress now for over half a century.
"Here's a way to harness Moore's law (which has given us many orders of magnitudes of improvement) to spaceflight (which is still using technology more or less developed in the middle of the 20th century). Some researchers at Cornell will be launching their "Chip" sats, tiny 1" square satellites affixed(?) to the Endeavour space shuttle. "Their small size allows them to travel like space dust," said Peck. "Blown by solar winds, they can 'sail' to distant locations without fuel. ..." Hopefully they "may travel to Saturn within the next decade, and as they flutter down through its atmosphere, they will collect data about chemistry, radiation and particle impacts."
While I really believe this is the future, I do have some questions. Although much can be miniaturized (nano-rized?), I'm wondering about some things such as optics (for cameras) and antenna/power (for transmitting the results back home). So while these may very well flutter down Saturn's atmosphere, there may need to be a large(r) mothership capable of transmitting the results home. (This was the mechanism used by Greg Bear in his novel "Queen of Angels" where his interstellar ship dropped "coin" sized probes to explore the worlds of Alpha Centauri.)
With the retirement of Endeavour we have the end of one technology coinciding with the birth of another."
If we are the point where a space probe (albeit a limited one) can be fit onto a single chip, why are we still bothering with expensive and fragile humans in outer space?
There are three of them, this time. However, they are talking about 10,000/tonne. What happens when that swarm get to low Earth orbit? Some will inevitably persist; it would only take a nudge at launch and they'll remain near the ISS. Who gets to plot all of them; and, who gets to authorise a launch through the swarm or its remnants? Hearing three is only the beginning; try tracking 10,000.
Looking at space, radio, science and computing from a 'down-under' amateur enthusiast perspective.
This merely underscores the importance of completing development of a replacement platform for the Space Shuttle, to meet the clearly growing need for orbital clam chowder.
...getting strangely aroused by this thought of miniature sattelites of something-point-something cm length being launched anywhere...?
I would think that the usefulness of this paradigm decreases greatly at great distances from the Sun. The linked article states that for the chips here on Earth it is already a challenge to receive and identify the radio "chirps". Considering that the inverse-square law would decrease both the strength of the transmitted signal, and at the same time decrease the energy which can be collected by the chip's solar cells, this doesn't seem to be a good fit for distant missions like Jupiter, Titan, or Europa. Might be OK for the upper atmosphere of Venus, although it's still very much further away than low earth orbit with respect to the radio emission intensity.
When I read "cracker-sized", I thought of petroleum crackers and was very impressed by the sudden audacity.
I think they mean "Crakcer-assed cracker sized" satellites.
Sig Registration Form 34c_766(a) submitted to Ministry of Signature Management. Approval pending.
Here is a link that shows the actual PCBs rather than, say, a cracker... http://www.space.com/11508-shuttle-launch-satellite-chips-endeavour.html
Too many parentheses (not a lisp site).
When our name is on the back of your car, we're behind you all the way!
Three 250 pound 5' 11" satellites.. Those things are huge!
Wait, is there a different definition of cracker?
Do not look at laser with remaining good eye.
"Due to their size, atmospheric drag would slow them down..." No. Because their shape creates drag.
Seems to me that you could put these little "cracker-sats" into orbit with a heavy-duty slingshot. Talk about a green revolution!
Sweet, every launch with even a few excess pounds of lift-capacity can acquire hundreds of little eye's in the sky. That actually would be a good idea for acquireing payment for every ounce of launch capacity you have.