Planets and Stars to Scale

	Duration: 02:35 minutes Upload Time: 07-05-02 11:17:27 User: FreeScienceLectures :::: Favorites :::: Top Videos of Day
Description: http://www.FreeScienceLectures.com The video shows how each planet scales in size relative to each other. The exploration begins at the smallest planet Mercury which has diameter of just 4880 km, then comes Mars (6794 km), Venus, Earth (12756 km), Neptune, Saturn, Jupiter (142984 km), Sun, Sirius, Pollux, Arcturus (4177500 km), Rigel, Beteigeuze, Antares (1108430000 km), My Cephei, VV Cephei (288194 times bigger than Earth). Pretty impressive! --- It's Never too Late to Study: http://www.FreeScienceLectures.com --- Notice: This video is copyright by its respectful owners. The website address on the video does not mean anything. ---
Comments
bassboombottom ::: Favorites oh shi- 07-09-16 13:54:14 __________________________________________________
TeenageAznBoy ::: Favorites I never seen anything bigger than the sun. O_O 07-09-14 12:31:58 __________________________________________________
addinan ::: Favorites Glory be to God 07-09-11 02:39:54 __________________________________________________
revilo178 ::: Favorites Like when u release hot gas or vapor from a bottle into a larger room, it gets colder. 07-09-10 12:38:40 __________________________________________________
revilo178 ::: Favorites I think you're right. That big stars have a colder surface does make sense: when the stars blows up the gas gets rarefied and therefore colder, the warmth being dispersed on a larger volume. 07-09-09 21:11:06 __________________________________________________
Mcmur ::: Favorites ok so, dont more massive stars actually have a lower surface temperature then smaller ones but hotter cores (which doesnt seem to make sense to me, perhaps i misread something) and doesnt that mean that more massive stars are at later stages of their life because since their cores are hotter they have finished converting hydrogen into helium and perhaps even reached a hot enough temperature to start converting helium into carbon. 07-09-09 19:19:28 __________________________________________________
kylem2904 ::: Favorites i feel so small :'( 07-09-09 13:38:25 __________________________________________________
bannehzita ::: Favorites lol could be...but mine sounds more interesting hehehheheh gaints from space lol;) 07-09-09 11:44:52 __________________________________________________
revilo178 ::: Favorites Big stars are said to have a short life compared to the sun and to be too unstable, thus changing their dimensions an their brightness too quickly. Not very good for the evolution of life as we know it. 07-09-09 09:01:51 __________________________________________________
revilo178 ::: Favorites I don't think so. Maybe they have normal planets like earth around them at a damn big distance so that they are not burnt to slices. 07-09-09 08:59:03 __________________________________________________