...showing the true scale of an atomic nucleus and one of it's orbiting electrons.
Have you got what it takes to hold down the arrow key and take the s-l-o-w journey?
Or will you cheat and use the mouse to scroll quickly to the left?
Now, we skip rapidly over the bugs, bacteria, viruses and the cellular scale, up past trees, people and continents, off the Earth and into nearby space.
...because the info on this page helps me understand the relationship between a star's size, brightness and habitable zone. To explain, one Astronomical Unit (A.U.) equals the distance from the Sun to the Earth, that is, about 93,000,000 miles.
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HighPriestessLois Newbie First Class
Joined: Feb 27, 2010
Posts: 45
Location: Arizona USA
Posted:
Sun Mar 07, 2010 2:01 am
The first one doesn't have a scroll bar, so how do you make it move?
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Eon The Learned
Joined: May 03, 2008
Posts: 182
Location: Nottingham, England
The first one doesn't have a scroll bar, so how do you make it move?
Hi Lois!
When I click on the link an image of the planet Neptune with the word, 'Proton' written on it appears. Also, a small, blue button (which can be dragged using a mouse) should appear in the lower, left-hand corner of the screen. Drag this to the right and eventually you'll arrive at the electron, a tiny green dot, just one pixel across. If these things don't appear - then I'm sorry, there must be a glitch preventing these functions.
BAA.
_________________ Nietzsche was wrong - god never lived.
BornAgainAthiest Graduate Thinker
Joined: Jun 16, 2008
Posts: 669
Location: Here.
Posted:
Tue Mar 30, 2010 1:24 pm
Great link, Eon!
Thanks.
BAA.
_________________ Nietzsche was wrong - god never lived.
HighPriestessLois Newbie First Class
Joined: Feb 27, 2010
Posts: 45
Location: Arizona USA
Posted:
Wed Mar 31, 2010 1:01 am
There's no button, either, on the first link. Might be a Firefox thing? Anyway, I right-clicked on the page, clicked on "View Source," then scrolled all the way to the bottom of the page and clicked on "electron.gif" so I could see the image. I didn't realize there was such a huge size difference between a proton and an electron!
Love that Scale of the Universe link, Eon.
_________________ "Love is what separates us from animals!"
"No, Lister, what separates us from animals is that we don't use our tongues to clean our own genitals."
iPondR Graduate Thinker
Joined: Aug 19, 2009
Posts: 534
Location: Aussie Prawn Facility; District 10
Really nice, xcept, the observable universe (when almost zoomed fully out) is more than 14BN LY across...(spatially, ie distance) it is more like...**
wiki wrote:
The age of the Universe is about 13.7 billion years, but due to the expansion of space we are now observing objects that are now considerably farther away than a static 13.7 billion light-years distance. The edge of the observable universe is now located about
46.5 billion light-years
away.
Also, the observable horizon is apparently shrinking, due to expansion of space*. In the far future (assuming we don't self-destruct ) we won't recieve light beyond the local group. Far, really, really, far. Man.
"The Estimated Size of the Universe" is... who can tell?
Wiki-Wiki-Baby wrote:
No evidence exists to suggest that the boundary of the observable universe corresponds precisely to the physical boundary of the universe (if such a boundary exists); this is exceedingly unlikely in that it would imply that Earth is exactly at the center of the Universe, in violation of the Copernican principle. It is likely that the galaxies within our visible universe represent only a minuscule fraction of the galaxies in the Universe. According to the theory of cosmic inflation and its founder, Alan Guth, the lower bound for the diameter of the entire Universe could be at least in the range of 10^23 to 10^26 times as large as the observable universe.
Or as the venerable 'Book of Hitchhikers' sayeth "...you may think it's a long way down to the chemist, but that's just PEANUTS to space..."
piggly-wikkily wrote:
Using the rounded off figure of 10^11 light years for the diameter of the observable cosmos and the lower figure of 10^34 light years for the diameter of the entire cosmos means that there is a difference of at least 23 orders of magnitude between the size of the observable cosmos and the size of the entire cosmos (assuming again the validity of the inflation theory),
which is equivalent to the difference in size between a proton and the planet Earth
.
Whoah! >> I'm off to get a decent noodle soup (no that's not a metaphor)...
* i.e. extremely distant objects can recede @ faster than the speed of light...
** Mate, I could be wrong, BUT...
[Appendix 'A'] ...is it just me? Does anyone else find it disturbing that a HIV virus (90nm) can fit inside a pit on a CD (120nm)... OK just me then
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) we won't recieve light beyond the local group. Far, really, really, far. Man.
