phys (1021) - Space: satellites

today.. didnt talk about much coz looking at tests

hmm ironic that the science site im on is israeli, just coming out of talking about english

so it goes like this..

mr pitt was talking about satellites.

he talked about the iridium satellites that were meant to be for communication, but failed coz people dont use satellite phones, but the US military put it to use.

he also told us about sputnik, from like 1957, a satellite launched by USSR just coz they could. it was a breakthrought hat proved that satellites could be put into orbit, and that signals can be sent from sputnik.

mr pitt also told us about the atmosphere being really thin, and there beingl ike 10000 bits of space junk flying above the atmosphere right now, and have they all have to be monitored, coz we dont want things to crash into them.

mr pitt said we should see satellites, especially the iridium ones, which "flare" aka reflect heaps of sunlight.

he also spoke of the ISS and how it's being built. it recently had stuff added to it, and people work for like 4-5 hours on jet pack chair thingoes, working on the ISS. it costs like 60 million dollars for a ride up there, which led to mr pitt talkinga bout that 2 billion dollar boat that kills cameras when it detects them.

anyway.. tahts pretty much it i think.