Graph invariants | Pursuit–evasion
In graph theory, a branch of mathematics, the cop number or copnumber of an undirected graph is the minimum number of cops that suffices to ensure a win (i.e., a capture of the robber) in a certain pursuit–evasion game on the graph. (Wikipedia).
What do 5, 13 and 563 have in common?
We're talking Prime Numbers again... Featuring Dr James Grime. More links & stuff in full description below ↓↓↓ Extra footage: http://youtu.be/AiplrfFB6h0 Our Prime Numbers extravaganza: http://bit.ly/primevids Brown paper: http://bit.ly/brownpapers Liar Numbers: https://www.youtube.com/w
From playlist Numberphile Videos
Counting Cars: Danny's Cop Car Reunion | History
Danny gets pulled over by a smoking hot cop car that's so rad, it's gotta be his in this scene from "Flamin' and Misbehavin'." Subscribe for more from Counting Cars and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Watch more Counting Cars on YouTube in this playlist: htt
From playlist Counting Cars: Official Series Playlist | History
What is Graham's Number? (feat Ron Graham)
Ron Graham explains the number which takes his name... See our other Graham's Number videos: http://bit.ly/G_Number More Ron Graham Videos: http://bit.ly/Ron_Graham More links & stuff in full description below ↓↓↓ Graham's Number (Numberphile T-Shirt): http://bit.ly/Grahams_T-Shirt See hi
From playlist Big Numbers on Numberphile
5040 and other Anti-Prime Numbers - Numberphile
Audible: http://www.audible.com/numberphile (free trial) Dr James Grime discusses highly composite numbers. More links & stuff in full description below ↓↓↓ Continues and extra footage: https://youtu.be/PF2GtiApF3E Prime numbers (more videos): http://bit.ly/primevids http://www.antiprim
From playlist Prime Numbers on Numberphile
Counting Cars: Best of Paint Jobs - Sneak Peek | History
Watch a Sneak Peek of an all-new episode of Counting Cars, coming your way on Tuesday at 9/8c on HISTORY. Subscribe for more from Counting Cars and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Watch more Counting Cars on YouTube in this playlist: https://www.youtube.com/
From playlist Counting Cars: Best Of | History
Counting Cars: Let's Make A Deal | History
Danny checks out an '86 Chevy Fleetside that could be a good potential flip for the shop. Subscribe for more Counting Cars: http://histv.co/SubscribeHistoryYT Enjoy more Counting Cars on YouTube: https://www.youtube.com/playlist?list=PLob1mZcVWOaia0E8fht4GdEXWoZJbK7KO Check out exclusiv
From playlist Counting Cars: Official Series Playlist | History
Largest Known Prime Number (extra footage) - Numberphile
Extra footage on the new "largest known prime number". Main video is at: http://youtu.be/QSEKzFGpCQs More links & stuff in full description below ↓↓↓ This video features Dr Tony Padilla from the University of Nottingham. NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Fa
From playlist Prime Numbers on Numberphile
Rosalind Cameron - Surrounding cops and robber: a vertex-pursuit game
Rosalind Cameron (University of Canterbury) presents “Surrounding cops and robber: a vertex-pursuit game”, 17 February 2021 (CMSA Combinatorics Seminar).
From playlist CMSA Combinatorics Seminar
How Many Cops to Catch a Robber? | Infinite Series
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Last episode, we used graph theory to figure out how a cop could catch a robber. But what happens when we introduce multiple cops? What happens if you have "lazy" cops
From playlist An Infinite Playlist
More links & stuff in full description below ↓↓↓ There are only three pairs of Brown Numbers - and only five of the numbers themselves (because 5 is repeated)... At least we think that's all of them? No-one has proven it. This is called Brocard's Problem and has been entertained by great
From playlist Ed Copeland on Numberphile
Lecture 17: COPS, Causal Consistency
Lecture 17: COPS, Causal Consistency MIT 6.824: Distributed Systems (Spring 2020) https://pdos.csail.mit.edu/6.824/
From playlist MIT 6.824 Distributed Systems (Spring 2020)
The Cops and Robbers Theorem | Infinite Series
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Can a cop catch a robber? There's some surprising and compelling graph theory that go into answering that question. Tweet at us! @pbsinfinite Facebook: facebook.com/pb
From playlist An Infinite Playlist
CGSR | Readout of COP27: Implications for Global Climate Efforts by Alice Hill
Abstract: The UN Climate Change Conference 2022, Conference of Parties (COP27), convened November 6th to 20th in Egypt. For nearly three decades, the UN has hosted these global climate summits, with the most significant being COP21 held in Paris, France in 2015 where all countries agreed t
From playlist Center for Global Security Research
The mystery of 0.577 - Numberphile
The harmonic series and the elusive Euler–Mascheroni constant. More links & stuff in full description below ↓↓↓ Featuring Dr Tony Padilla. Audible: http://www.audible.com/numberphile Extra footage: https://youtu.be/eRGN8ThZfhU Videos about -1/12: http://bit.ly/minus_twelfth Tony at the
From playlist Tony Padilla on Numberphile
Topology, Winding Numbers and Signed Area | Algebraic Calculus One | Wild Egg
Topology arises from a key property of the continuum as modelled by the rational numbers: that we have distinguished positive numbers (x greater than or equal to 0) which are closed under addition and multiplication. This is the starting point of notions of inside and outside. When we mov
From playlist Algebraic Calculus One from Wild Egg
Using Excel to check convexity for splines | Algebraic Calculus One | Anna Tomskova
In this video, Dr Anna Tomskova explains how to use Excel to create a worksheet to check convexity of a given COPS (cyclic oriented polygonal spline), using the framework of signed areas. Anna demonstrates the use of the program also view a GeoGebra visualization. Besides reviewing basic a
From playlist Algebraic Calculus One
Vivek Malhotra - Building a machine at endoplasmic reticulum for collagen export
Secreted collagens compose 25% of our dry body weight and necessary for tissue organization, and skin and bone formation. But how are these bulky cargoes that are too big to fit into a conventional COPII vesicle exported from the ER? Our discovery of TANGO1 (Bard, Nature 2006; Saito, Cell
From playlist From Molecules and Cells to Human Health : Ideas and concepts
RailsConf 2020 CE - Communicating with Cops by Kyle d'Oliveira
Communicating with Cops by Kyle d'Oliveira "As the number of developers grows within an organization, how do you keep others informed of best practices, or patterns that caused problems in the past? Is there a lot of tribal knowledge or documentation that developers need to memorize? That
From playlist RailsConf 2020 CE
Numberphile is also on Facebook: http://www.facebook.com/numberphile More links & stuff in full description below ↓↓↓ 142857 is the most "famous" of the intriguing cyclic numbers. Featuring Dr Tony Padilla from the University of Nottingham - https://twitter.com/DrTonyPadilla NUMBERPHILE
From playlist Tony Padilla on Numberphile
At COP26 With President Obama | Seat At The Table
Watch all the Sustainability YTOs here: https://yt.be/SustainabilityYTO Just what is COP26 all about? And what will make it a success? In this episode, I embark on the challenge of presenting our unheard voices at COP26. Along the way, I talk with President Barack Obama, COP26’s president
From playlist Seat at the Table