Lysis of Taras (/ˈlaɪsɪs/; Greek: Λῦσις; fl. c. 5th-century BC) was a Greek philosopher. His life is obscure. He was said to have been a friend and disciple of Pythagoras. After the persecution of the Pythagoreans at Croton and Metapontum he escaped and went to Thebes, where he became the teacher of Epaminondas, by whom he was held in the highest esteem. There are, however, serious chronological difficulties with his being both a disciple of Pythagoras and the teacher of Epaminondas. Some of the commentators and doxographers have failed to distinguish between the two different anti-pythagorean revolutions: the first one around ~500, when Pythagoras himself died, and the second one fifty years later. This could clarify the source of the chronological incoherence. Lysis was credited as the actual author of a work which was attributed to Pythagoras himself. Diogenes Laërtius quotes from an undoubtedly spurious letter from Lysis to Hippasus as an authority for some statements concerning Damo. (Wikipedia).
Solution Chemistry and Net Ionic Equations
What are electrolytes? Yes, they're what plants crave. But they are also ionic solids dissociated in solution, such that they can conduct electrical current. Learn about solutions! Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem More AP Chemistry review material
From playlist General Chemistry
LHCNews Nov 12, 2009 - Protons are back in the LHC!
After more than a year, protons were injected into the LHC...
From playlist The Large Hadron Collider
The High-Luminosity LHC project takes shape at CERN's Point 1
The construction of an underground cavern at Point 1, which will house equipment for the High-Luminosity LHC, has been successfully completed. Find out more: https://home.cern/news/news/accelerators/high-luminosity-lhc-project-takes-shape-point-1
From playlist LS2
Photosynthesis: Light Reactions and the Calvin Cycle
We get energy by eating other organisms, but plants don't have to do that. They can build their own food out of water, carbon dioxide, and sunlight. I'm sure you've heard of photosynthesis before, but let's take a look at some of the finer points, shall we? Watch the whole Biochemistry pl
From playlist Biochemistry
A.I. Just Designed An Enzyme That Eats Plastic
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From playlist Technology
The Protein Hourglass: First Passage Time Distributions for Protein Thresholds by Dibyendu Das
PROGRAM STATISTICAL BIOLOGICAL PHYSICS: FROM SINGLE MOLECULE TO CELL (ONLINE) ORGANIZERS: Debashish Chowdhury (IIT Kanpur), Ambarish Kunwar (IIT Bombay) and Prabal K Maiti (IISc, Bengaluru) DATE: 07 December 2020 to 18 December 2020 VENUE: Online 'Fluctuation-and-noise' are themes tha
From playlist Statistical Biological Physics: From Single Molecule to Cell (Online)
Laparoscopic Lysis of Abdominal Adhesions
http://www.nucleushealth.com/ - This 3D medical animation depicts how adhesions in the abdomen may cause complications. These problems may include obstruction, twisting, and dislocating areas of the small intestine. Adhesions can be separated with laparoscopic instruments. #AbdominalAdhe
From playlist Laparoscopic & Arthroscopic Procedures
Now those pesky moles are swimming! But how much solute is there? Let's learn about how we measure concentrations of solutions, and how to perform dilution calculations. Watch the whole General Chemistry playlist: http://bit.ly/ProfDaveGenChem More AP Chemistry review materials from me:
From playlist General Chemistry
Pathophysiology of herpes | Infectious diseases | NCLEX-RN | Khan Academy
Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-prep/mcat) for MCAT related content. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to
From playlist Infectious diseases | NCLEX-RN | Khan Academy
CERN gears up to cool LHC down
The CERN cryogenics team are filling the LHC with liquid helium, cooling entire sections to below 4 degrees kelvin (-269.15°C) in preparation for the LHC restart in 2015. Some 120 tonnes of helium are used to cool the LHC to temperatures colder than outer space. How can we explain the wo
From playlist The Large Hadron Collider
Laparoscopic Lysis of Abdominal Adhesions (2011)
UPDATE 1/30/15: Watch the updated version of this animation: https://www.youtube.com/watch?v=LVP6JngpgEE This 3D medical animation shows how adhesions in the abdomen may cause complications. These problems may include obstruction, twisting, and dislocating areas of the small intestine.
From playlist Laparoscopic & Arthroscopic Procedures
Separating Components of a Mixture by Extraction
When we perform a chemical reaction, we are usually trying to get a particular molecule. But when we are done with the reaction, there will probably be a bunch of different stuff in the reaction flask. How do we get just the thing we want and not the other stuff? It's actually pretty invol
From playlist Organic Chemistry
6.5 - Cancer: Evading the immune system
"Evolutionary Medicine" Sinauer Associates (2015) is the textbook that supports these lectures. Instructors can request examination copies and sign up to download figures here: http://www.sinauer.com/catalog/medical/evolutionary-medicine.html
From playlist Evolution and Medicine (2015) with Stephen Stearns
The Computer Chronicles - Scanners (1991)
Special thanks to archive.org for hosting these episodes. Downloads of all these episodes and more can be found at: http://archive.org/details/computerchronicles
From playlist The Computer Chronicles 1991 Episodes
AlphaFold: The making of a scientific breakthrough
The inside story of the DeepMind team of scientists and engineers who created AlphaFold, an AI system that is recognised as a solution to "protein folding", a grand scientific challenge for more than 50 years. Find out more: deepmind.com/alphafold Protein references: TBP = To be publ
From playlist The story of AlphaFold
The Search for History’s Lost Slave Ships | Podcast | Overheard at National Geographic
On the bottom of the world’s oceans lie historic treasures—the lost wrecks of ships that carried enslaved people from Africa to the Americas. Only a handful have been identified so far, but National Geographic explorer and Storytelling Fellow Tara Roberts is documenting the efforts of Blac
From playlist Podcast | Overheard at National Geographic
Christmas Lectures 2020: Up in the Air - with Tara Shine
In the third lecture of the 2020 Christmas Lectures, environmental scientist Tara Shine demonstrates how Earth produces a never-ending supply of oxygen – the raw material for all complex life. Watch more Christmas Lectures: http://www.rigb.org/christmas-lectures/watch?utm_source=youtube&ut
From playlist Royal Institution Christmas Lectures
It's time to start learning about all the monomers that make up large biomolecules, and the first one we will look at is the amino acid. These make up proteins, which is most of what you are, so this is pretty important stuff! Watch the whole Biochemistry playlist: http://bit.ly/ProfDaveB
From playlist Biochemistry
Controlling Blood Glucose | Revision for Biology A-Level and IB
I want to help you achieve the grades you (and I) know you are capable of; these grades are the stepping stone to your future. Even if you don't want to study science or maths further, the grades you get now will open doors in the future. Tutoring - We can match you with an experienced t
From playlist AQA A-Level Biology | Ultimate Revision Playlist
Anaerobic Respiration and Fermentation
We took a look at aerobic respiration in the biochemistry series, and we know that it requires molecular oxygen to occur. But there are other forms of energy production that do not require oxygen. Those are anaerobic respiration and fermentation. The latter of these has two forms, as it ca
From playlist Biology/Genetics