Almost true. I just got back from a 2 week European trip, and paid about 60 cents a day for 'free' email and roaming. (I have a Blackberry with T-Mobile and activated their international email plan for my stay). This may seem like a lot of pennies, but when you consider that I could email unlimited 1mb pictures back home with no additional charge, this was quite the deal. I have used this service many time over the years, and will probably stay with Blackberry and T-mobile for that reason.
A quick calculation:
Diameter of the Sun: 1 million miles
100 AU's: 93 million miles * 100 = 9300 million miles
Angular size of the sun as viewed from 100 AU's:
1/9300 = arctan (x), so x = about 22 seconds of arc.
Just 2/3 the size of what that bright dot Jupiter looks like to us!
And I suppose the Sun would appear 1/100^2, or one ten thousanth as bright?
Hope all that is right!
Slashdot Mirror
Almost true. I just got back from a 2 week European trip, and paid about 60 cents a day for 'free' email and roaming. (I have a Blackberry with T-Mobile and activated their international email plan for my stay). This may seem like a lot of pennies, but when you consider that I could email unlimited 1mb pictures back home with no additional charge, this was quite the deal. I have used this service many time over the years, and will probably stay with Blackberry and T-mobile for that reason.
Tune in to the webcast of NASA TV-- They're deploying their new solar panels now!
A quick calculation: Diameter of the Sun: 1 million miles 100 AU's: 93 million miles * 100 = 9300 million miles Angular size of the sun as viewed from 100 AU's: 1/9300 = arctan (x), so x = about 22 seconds of arc. Just 2/3 the size of what that bright dot Jupiter looks like to us! And I suppose the Sun would appear 1/100^2, or one ten thousanth as bright? Hope all that is right!