Search Results: "Luminosity"

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• 10:41

  Stars: Crash Course Astronomy #26

  642 views / 0 likes - added 8 years ago

  Today Phil’s explaining the stars and how they can be categorized using their spectra. Together with their distance, this provides a wealth of information about them including their luminosity, size, and temperature. The HR diagram plots stars’ luminosity

• 04:37

  What Are The Brightest And Darkest Things In Space?

  606 views / 0 likes - added 8 years ago

  Space is filled with bright supernovae and dark black holes but how do we figure out what the brightest thing in space is? Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG Did We Just Find the Ninth Planet?►►►►http://bit.ly/1RHktGr Read

• 03:27

  How Do We Know The Universe Is ACCELERATING?

  676 views / 0 likes - added 6 years ago

  The universe is expanding – this we know from looking at red shifts of distant galaxies – but the acceleration of the universe's expansion is harder to measure. It requires measuring the change of recession velocity over time, and it's done by comparing T

• 10:09

  The Amazing Oil Drop Light Meter

  363 views / 0 likes - added 4 years ago

  Checkout Brilliant here: https://brilliant.org/theactionlab/ In this video I show you the world's simplest light meter made form a drop of oil on a piece of paper. I show you how you can use this as a tool to determine the relative brightness or luminosit

• 04:32

  What if the Universe Was Lopsided?

  256 views / 0 likes - added 3 years ago

  A new study suggests that our universe might not be isotropic like we thought, but instead it could actually be anisotropicmeaning we might live in a lopsided universe. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/

• 05:50

  What The Color Of A Star Reveals About Its Composition

  235 views / 0 likes - added 3 years ago

  People have noticed this range of colors in the stars throughout history and its actually a pretty good indicator of a stars temperature, chemical composition and life stage. In this episode, we explore why stars sometimes change color and how to spot an

• 03:11

  The Doubly Warped World of Binary Black Holes

  255 views / 0 likes - added 3 years ago

  A pair of orbiting black holes millions of times the Sun’s mass perform a hypnotic dance in this NASA visualization. The movie traces how the black holes distort and redirect light emanating from the maelstrom of hot gas – called an accretion

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