Just as amazing today (or at least in 2013 :P ) as he was in my intro Astronomy class at Cal in 1996. This guy is an astro-master.
@ColleenCupido
3 ай бұрын
All 96 lectures from revised Great Courses. All 40 45 minute lectures, first edition. MAJOR influence in the astronomy imagery in my poems. And the great push to see s complete eclipse in Oregon in 2017. Thanks, Alex
@DoctorZisIN
11 жыл бұрын
Remember Newton? "The force of gravitational pull between two objects is inversely proportional to the square of the distance between them." So gravity fades with distance, but dark energy gets stronger with distance. LIke with all forces there is a balance point, or neutral point where they cancel each other out. Any closer and gravity wins. Any further and dark matter wins. Does that make sense?
@Chance_Adams
11 жыл бұрын
A truly great mind and great person.
@JDLamps1
10 жыл бұрын
I am humbled by it all.
@luizeduardo4311
6 жыл бұрын
Obrigado por traduzirem seus vídeos! 👏👏👏👏
@virheck
5 жыл бұрын
TE AMOO ALEX!!
@yoganandavalle
2 жыл бұрын
He has a certain vibe and look to Robin Williams RIP.
@bengalinsider2024
3 жыл бұрын
Underrated
@Landrew0
11 жыл бұрын
It doesn't quite add up. If space is expanding as a whole, why would our galaxy or our solar system be excluded? How could we know that only the space "out there" expands? How could it not be that all space expands everywhere?
@lyricessence
3 жыл бұрын
He didn't say it was. You flunk the pop quiz.
@pedrox96
3 жыл бұрын
Because the gravity within the galaxy cluster, in the inside of the galaxies, in the stellar systems, this gravity is enough to prevent the influence of dark energy and keep it all glued together. And that's only because a giant spider web of dark matter covers the galaxies. Dark matter is the thing preventing the influence of dark energy within the galaxies.
@donhillsr1466
9 жыл бұрын
GO SMALL THINK BIG Waves are caused by contact with Planck particles vibrating at an infinite rate. the speed of light. space density determines the net speed of light. the denser space, the slower.the travel time of light. See my unpublished Theory of Nothing
@sickmsmokey
4 жыл бұрын
Yikes...philosophy disguised as science.
@erifrogs
2 жыл бұрын
Science is based on philosophy. For example, Pythagoras, Aristotle, and not even hellenistic philosophers such as Sir Francis Bacon, Galileo, Ḥasan Ibn al-Haytham... (the list is endless) were both scientists and philosophers. Philosophy questions the world, science explains it. They walk hand in hand and depend and rely on each other. Hoped that helped 🌟
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