pocketstar

8 ms·

31.
by pocketstar 8y ago
>none of that stuff will be in orbit in 60m years. where will it go? it wouldn't have the drag or the delta-v to reenter. i think the parent meant geostationary altitude, but "geostationary" orbits are "relatively&quo
32.
by pocketstar 9y ago
The satellite was headed to geostationary orbit over africa, 4Deg west. Unless you live in northern africa the satellite would never be overhead.
33.
by pocketstar 9y ago
Facebook didnt own the satellite, msm would lead you to believe they did. Facebook had just leased all the capacity of the satellite from Spacecom. Facebook lost nothing, there was no feaud.
34.
by pocketstar 9y ago
a "radiator" is a heat exchanger and "radiator" is the industry standard term. these semantics are required for effective communication about technical topics.
35.
by pocketstar 9y ago
"A black body is an idealized physical body that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence." [0] Black bodies are theoretical, they do not exist. Apollo had radiators, they might
36.
by pocketstar 9y ago
A majority of the exterior surfaces on spacecraft are black, gold or OSR. The black or gold however is multi layer insulation. Where the outboard surface would get hot and the inboard surface would be cooler. Where the OSR surface is your r
37.
by pocketstar 9y ago
those black body radiators(doesnt exist) will be visible in the IR...unless you can get them down to 3K to blend in with the background. Running a spacecraft that cold is pretty impractical because all the bus equipment uses power and any p
38.
by pocketstar 9y ago
Like the JWST?
39.
by pocketstar 9y ago
a "matte black" spacecraft would get very very hot, too hot for most electronics and be detectable with an IR camera. ion thrusters use significant power and would require a large and visible solar array. misty would be technicall
40.
by pocketstar 9y ago
SpaceFlight.com can handle the launch. Why do you want a LEO orbit, there might be better orbits for your mission? You'll probably want a radhard processor instead of a Pi Zero. You will also need Batteries, Thermal, Attitude Determina
41.
by pocketstar 9y ago
inlk has the publications you listed(excluding Nautilus) and is only $15AU/month [~$11USD] its not the greatest but it is a decent service that I can use to support journalism.
42.
by pocketstar 9y ago
Electromagnetic shielding with superconductors is probably better than a mass solution.
43.
by pocketstar 9y ago
No spacecraft can hope match terrestiral latency, the speed of light is not your friend. There was an identical push for space ISPs in the 90's. Iridium was the only sucessful leo space "ISP". Elon has been sucessful with wha
44.
by pocketstar 9y ago
Try Lyft Premier: https://blog.lyft.com/posts/introducing-lyft-premier Or do you explicitly want a black car...?
45.
by pocketstar 9y ago
There are breakthroughs in material science everyday. The biggest break through happened recently by henry bessemer in the 1800's, called the bessemer process. Steel and concrete will not be replaced anytime soon, with steels infinite
46.
by pocketstar 9y ago
http://www.inkl.com/
47.
by pocketstar 10y ago
I've heard its C++ at spaceX, they had a company standard C++ interview test.
48.
by pocketstar 10y ago
Notational Velocity. The project has been abandoned for years on github, because NV is perfect. Syncs with simplenote if you want. NV is just a simple, fast, notes app, full of useful hotkeys. I've used NV daily for the past 6 years wi
49.
by pocketstar 11y ago
No mention of Ni-Fe batteries, they are significantly more robust than LA or Li and have 30+ year lives.
50.
by pocketstar 11y ago
Asteroid mining & Spacestations/microgravity habitation.
51.
by pocketstar 11y ago
4-day smartphone* battery, I can remember when I only charged my mobile telephone once a week.
52.
by pocketstar 11y ago
Uh, welcome to the internet? Outside the internet you can vote with your money, on the internet you must vote with your time(youtube's product). Stop selling your time to youtube.
53.
by pocketstar 11y ago
Pentel EnerGel Liquid Gel Ink 0.5(Made in Japan) is the best left friendly pen I have used to date, ink dries instantly so no lefty smudge. The sharpie pen is a close second.
54.
by pocketstar 11y ago
This article fails to mention the aging Cactus Dome containing gratuitous amounts of radioactive soil that will breach containment soon and cause fukushima chernobyl 9/11*1000 radioactive damage
55.
by pocketstar 11y ago
SpaceX's reusabulity efforts are just another incremental improvement to existing rocket technology. Reusable launch vehicles are nothing new. If they can get launch costs down to $60m with their reusable technology that would be great
56.
by pocketstar 11y ago
Pick one: https://en.m.wikipedia.org/wiki/List_of_private_spaceflight_...
57.
by pocketstar 11y ago
Correlation != causation. Only recently has mass media decided to push tech billionaire's pet projects as "space news", that's is all this shows. There are dozens of other arguably more significant space projects flying
58.
by pocketstar 11y ago
Before medication try Cognitive Behavioral Therapy, Read: Feeling Good: The New Mood Therapy by David B. Burns
59.
by pocketstar 11y ago
Every aluminum macbook(pro/air) that I have used gets hot from basic use. The computer will feel hot to the touch because aluminum is such a good thermal conductor(170W/mK). smcfancontrol can be your friend if you have legitimate
60.
by pocketstar 11y ago
Define overheat...the MBP just gets hot "overheat" or greyscreen of death "overheat"?

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