In photobiology, the einstein (symbol E) is defined as one mole of photons. As such, photosynthetically active radiation (PAR) may be reported in microeinsteins per second per square meter (μE⋅m−2⋅s−1). The einstein is not part of the International System of Units (SI) and is redundant with the mole. Since the unit does not have a standard definition and is not part of the SI system, it is usually better to avoid its use. The same information about photosynthetically active radiation can be conveyed using the SI convention by stating something such as "The photon flux was 1500 μmol⋅m−2⋅s−1". The einstein may have been originally defined as the energy in one mole of photons. Since the energy of a photon is proportional to its frequency, this definition would make this ill-defined as a unit of energy. This unit was named after physicist Albert Einstein. (Wikipedia).
What is General Relativity? Lesson 69: The Einstein Equation
What is General Relativity? Lesson 69: The Einstein Equation Having done so much work with the Einstein tensor, the interpretation of the Einstein equation is almost anti-climatic! The hard part is finding the Newtonian limit in order to understand the constant of proportionality between
From playlist What is General Relativity?
What is General Relativity? Lesson 68: The Einstein Tensor
What is General Relativity? Lesson 68: The Einstein Tensor The Einstein tensor defined! Using the Ricci tensor and the curvature scalar we can calculate the curvature scalar of a slice of a manifold using the Einstein tensor. Please consider supporting this channel via Patreon: https:/
From playlist What is General Relativity?
Einstein's Theory Of Relativity Made Easy
http://facebook.com/ScienceReason ... Albert Einstein's Theory of Relativity (Chapter 1): Introduction. The theory of relativity, or simply relativity, encompasses two theories of Albert Einstein: special relativity and general relativity. However, the word "relativity" is sometimes used
From playlist Science
Albert Einstein, Holograms and Quantum Gravity
In the latest campaign to reconcile Einstein’s theory of gravity with quantum mechanics, many physicists are studying how a higher dimensional space that includes gravity arises like a hologram from a lower dimensional particle theory. Read about the second episode of the new season here:
From playlist In Theory
To you, who was Albert Einstein?
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From playlist Science Unplugged: Special Relativity
http://www.teachastronomy.com/ Albert Einstein was the most famous scientist of the twentieth century and perhaps of all time. The man who invented the theories of special and general relativity was an unconventional scientist who spent most of his career outside the mainstream. His Gree
From playlist 07. Geology and Physics
Einstein Field Equations - for beginners!
Einstein's Field Equations for General Relativity - including the Metric Tensor, Christoffel symbols, Ricci Cuvature Tensor, Curvature Scalar, Stress Energy Momentum Tensor and Cosmological Constant.
From playlist Gravity
Your Daily Equation #28: Einstein, The Big Bang, and the Expansion of the Universe
Episode 28 #YourDailyEquation: Shortly after Einstein published his new theory of gravity, his general theory of relativity, researchers realized that it predicted that the universe should expanding--a prediction subsequently confirmed by astronomical observations. And if it is expanding t
From playlist Your Daily Equation with Brian Greene
Joe Rogan & Albert Einstein Strategies to Fix Exhausted Brain
https://memorycourse.brainathlete.com/memorytips Memory course at link above and free memory PDF tips too An exhausted brain is a real thing. One of my biggest struggles i brain fog and mental fatigue. I am not always the best at not being my own worst enemy when it comes to mental fatigu
From playlist Brain Training
General Relativity & Mathematical Reality
Yet another anecdote that (in my opinion) suggest that mathematics is the basis of our reality: Inside Einstein's Mind — PBS Nova In this brief clip explaining the beauty of Einstein's equation for General Relativity, Professor Robbert Dijkgraaf of Princeton's Institute for Advanced Study
From playlist Gravity
What is General Relativity Lesson 1: Prerequisites, Books, Units, and Syllabus
What is General Relativity Lesson 1: Prerequisites, Books, Units, and Syllabus. This is the introduction/invitation/welcome to a course in General Relativity. It has been well over a year since we began this project. We now have a Patreon Page: https://www.patreon.com/XYLYXYLYX Please
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5. Einstein's Field Equations | MIT 8.224 Exploring Black Holes
Lecturer: Edmund Bertschinger View the complete course at: http://ocw.mit.edu/8-224S03 *NOTE: Sessions 6, 7 have no video. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT Exploring Black Holes: General Relativity & Astrophysics
9. Specific Heat and Planck's Law
MIT 2.57 Nano-to-Micro Transport Processes, Spring 2012 View the complete course: http://ocw.mit.edu/2-57S12 Instructor: Gang Chen License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 2.57 Nano-to-Micro Transport Processes, Spring 2012
Mass Defect & Binding Energy (7 of 7), The Helium Nucleus
Using the average atomic mass this video explains how to determine the amount of mass defect and binding energy from a helium 4 nucleus. The mass of an atomic nucleus is less than the sum of the individual masses of the free constituent protons and neutrons, according to Einstein's equati
From playlist Mass Defect and Binding Energy
Einstein's General Theory of Relativity | Lecture 9
Lecture 9 of Leonard Susskind's Modern Physics concentrating on General Relativity. Recorded November 17, 2008 at Stanford University. This Stanford Continuing Studies course is the fourth of a six-quarter sequence of classes exploring the essential theoretical foundations of modern phy
From playlist Lecture Collection | Modern Physics: Einstein's Theory
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From playlist Mechanics
Einsteins Legacy is All Around Us
Without Einstein's–and his successors'–work in quantum physics, we wouldn't have fiberoptic Internet cables, let alone technology like GPS. Smoke detectors, smartphone cameras, and the red glow in your toaster all show quantum physics at work as well. Take a look around your house with a n
From playlist Math and Statistics