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NewsRuby pioneers come clean on the language's shortcomings Pin
Kent Sharkey18-Jan-15 8:02
staffKent Sharkey18-Jan-15 8:02 
GeneralRe: Ruby pioneers come clean on the language's shortcomings Pin
PIEBALDconsult18-Jan-15 8:05
mvePIEBALDconsult18-Jan-15 8:05 
GeneralRe: Ruby pioneers come clean on the language's shortcomings Pin
Kent Sharkey18-Jan-15 8:15
staffKent Sharkey18-Jan-15 8:15 
GeneralRe: Ruby pioneers come clean on the language's shortcomings Pin
TheGreatAndPowerfulOz18-Jan-15 14:55
TheGreatAndPowerfulOz18-Jan-15 14:55 
GeneralRe: Ruby pioneers come clean on the language's shortcomings Pin
Dan Neely19-Jan-15 2:56
Dan Neely19-Jan-15 2:56 
NewsAnnouncing TypeScript 1.4 Pin
Kent Sharkey18-Jan-15 8:00
staffKent Sharkey18-Jan-15 8:00 
NewsElon Musk wants to build a new Internet from space Pin
Kent Sharkey18-Jan-15 7:58
staffKent Sharkey18-Jan-15 7:58 
GeneralRe: Elon Musk wants to build a new Internet from space Pin
Dan Neely19-Jan-15 3:11
Dan Neely19-Jan-15 3:11 
Kent Sharkey wrote:
Latency, schmatency


With a planned 750mi orbit vs 22000mi for a geo synchronous comsat, the speed of light latency problem mostly goes away. At geo you're looking at ~500 milliseconds for the 2 round trips needed (up and down for your request, then up and down for the servers response) from the equator. At the orbit Musk is planning the minimum is only 16ms; which while probably not as good as the 1st leg of your current ISP isn't going to be a major problem.

Musk's also hoping to make that up and then some by taking advantage of the fact that while light travels at c in a vacuum, it only travels at about .66c in a fiber. Potentially that means by bouncing a signal between several of his satellites it could be possible to beat a fiber ground link. (It's way too early for me to try and figure out how many satellites they'd need to use as intermediates in sending a message around the globe and fast they'd need to make relaying a packet for it to work out.)

The main challenge I think this would run into on the consumer end is that because LEO satellites don't maintain a fixed position in the sky, you'd need more open lines of sight to keep a connection, and a tracking antenna instead of a fixed one. And unless it was a phased array, you'd probably need two of them to avoid brief interruptions in service when switching from one satellite to the next.
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, waging all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius

Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt

GeneralRe: Elon Musk wants to build a new Internet from space Pin
Kent Sharkey19-Jan-15 6:32
staffKent Sharkey19-Jan-15 6:32 
NewsVisual Studio 2015 CTP 5 Available Pin
FIorian Schneidereit16-Jan-15 20:37
FIorian Schneidereit16-Jan-15 20:37 
NewsWhy we (still) believe in private offices PinPopular
Ravi Bhavnani16-Jan-15 16:27
professionalRavi Bhavnani16-Jan-15 16:27 
GeneralRe: Why we (still) believe in private offices Pin
PIEBALDconsult16-Jan-15 20:11
mvePIEBALDconsult16-Jan-15 20:11 
GeneralRe: Why we (still) believe in private offices Pin
Mycroft Holmes18-Jan-15 13:29
professionalMycroft Holmes18-Jan-15 13:29 
NewsChanging employee behavior can cut security risk by up to 70 percent Pin
Kent Sharkey15-Jan-15 15:53
staffKent Sharkey15-Jan-15 15:53 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
Garth J Lancaster15-Jan-15 18:05
professionalGarth J Lancaster15-Jan-15 18:05 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
Bassam Abdul-Baki16-Jan-15 1:04
professionalBassam Abdul-Baki16-Jan-15 1:04 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
Kent Sharkey16-Jan-15 4:56
staffKent Sharkey16-Jan-15 4:56 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
phil.o16-Jan-15 23:29
professionalphil.o16-Jan-15 23:29 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
KarstenK17-Jan-15 7:25
mveKarstenK17-Jan-15 7:25 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
BillWoodruff17-Jan-15 14:59
professionalBillWoodruff17-Jan-15 14:59 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
Kent Sharkey17-Jan-15 15:03
staffKent Sharkey17-Jan-15 15:03 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
Brisingr Aerowing18-Jan-15 8:05
professionalBrisingr Aerowing18-Jan-15 8:05 
GeneralRe: Changing employee behavior can cut security risk by up to 70 percent Pin
Kent Sharkey18-Jan-15 8:06
staffKent Sharkey18-Jan-15 8:06 
NewsUK’s Cameron wants Obama to take his side in new crypto war Pin
Kent Sharkey15-Jan-15 13:45
staffKent Sharkey15-Jan-15 13:45 
GeneralRe: UK’s Cameron wants Obama to take his side in new crypto war Pin
Agent__00715-Jan-15 15:46
professionalAgent__00715-Jan-15 15:46 

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