Mathematical analysis | Recreational mathematics
The ant on a rubber rope is a mathematical puzzle with a solution that appears counterintuitive or paradoxical. It is sometimes given as a worm, or inchworm, on a rubber or elastic band, but the principles of the puzzle remain the same. The details of the puzzle can vary, but a typical form is as follows: An ant starts to crawl along a taut rubber rope 1 km long at a speed of 1 cm per second (relative to the rubber it is crawling on). At the same time, the rope starts to stretch uniformly at a constant rate of 1 km per second, so that after 1 second it is 2 km long, after 2 seconds it is 3 km long, etc. Will the ant ever reach the end of the rope? At first consideration it seems that the ant will never reach the end of the rope, but whatever the length of the rope and the speeds, provided that the length and speeds remain steady, the ant will always be able to reach the end given sufficient time — in the form stated above, it would take 8.9×1043421 years. There are two key principles: first, since the rubber rope is stretching both in front of and behind the ant, the proportion of the rope the ant has already walked is conserved, and, second, the proportional speed of the ant is inversely proportional to the length of the rubber rope, so the distance the ant can travel is unbounded like the harmonic series. (Wikipedia).
Rope Trick for my neighborhood
During my show, a rope is spotted in my sleeve. I pull it...
From playlist My Magic
How Could A Makeshift Raft Cause This Much Drama? | Naked and Afraid XL
#NakedAndAfraidXL | Sundays at 11/10c Fernando gets caught up in the middle of an argument between Amber and Chance over a raft. Full Episodes Streaming FREE on Discovery GO: https://www.discoverygo.com/naked-and-afraid-xl More info: http://www.discovery.com/tv-shows/naked-and-afraid-xl/
From playlist Naked and Afraid XL
See How Ants Build Bridges in Mid-Air With Just Their Bodies | National Geographic
Army ants exhibit complex social behaviors that require group cooperation to achieve success. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class sc
From playlist News | National Geographic
Spider silk's sticky glue does two jobs
The glue droplets on a spider web help capture prey but they also contribute to the web's flexibility and strength. Learn more: http://scim.ag/1Oya3TY
From playlist Animals
Introduction to history and structure of polymers
0:00 introduction with demo of polymer liners to beverages 6:25 history of polymers 10:15 hydrocarbons 22:12 polymers made up from monomers with different radicals 24:19 polymerization of ethylene into polyethylene 33:07 common polymers, PE, PTFE, PP, PMMA, PVC, PS, bakelite, nylon, PET et
From playlist Introduction to Materials Science & Engineering Fall 2019
Rope Around the Earth Puzzle #shorts
You wrap a rope around the earth, then extend the rope by 1 metre. This puzzle requires no calculator, no cosmological knowledge. Just basic geometry, and some intuition.
From playlist Famous Math Problems
Now You Know: Bursting Balloons
When you stick a needle in a balloon, the rubber tears—the balloon pops. But high-speed video reveals the details, and there are some surprises to be had. How does the rubber unzip as it tears? It’s different for a round balloon and a longer balloon-animal balloon. And if the balloon is fi
From playlist Now You Know
I'm starting a weekly Electronics Kit show on Twitch EVERY THURSDAY AT 1PM EST! If you want to interact with me live stop by and ask me anything https://www.twitch.tv/derekbanas I have kids and I have always been interested in what you get in a STEM based subscription box. In this video
From playlist Electronics Kit Reviews
Rubber Band Single Handed Star Tutorial
This is the trick I use in my "Magic Rubber Star" video: http://www.youtube.com/watch?v=Wt9rarWWtDc. You might need some practice. With a proper presentation, it can add a little fun in a rubber band magic routine. I invented it, so don't forget to give me the credit ;~) Next puzzle: http:
From playlist Tricks and Math Puzzles answers
Bungee Jump Testing | I Didn't Know That
Watch technicians meticulously inspect bungee ropes before thrill seekers use them. These elastic ropes are the only things between bungee jumpers and certain death, so the ropes are tested daily. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About I Didn't Know That: Two industrial scientis
From playlist Fun Facts | National Geographic
The Ants in Ant-Man are more interesting than the hero himself. Subscribe for new episodes every Friday: http://bit.ly/1CWUwqa ----------- SOCIAL MEDIA https://www.tiktok.com/@animalogic https://www.instagram.com/animalogicshow/ https://twitter.com/animalogicshow https://www.faceb
From playlist Animalogic
Tree, the House of Ants in Return For Protection | Bullhorn Acacia in symbiosis with Ants
🐜 Acacia ants are known to live in symbiosis with the horned acacia tree. The symbiotic relationship begins with the tree's lure of the ant queen, who bites into a thorn to lay eggs. As the colony grows, the ants infest more thorns and, as befits good gardeners, attack creatures of all siz
From playlist INTERESTING FACTS ABOUT PLANTS
Protecting The Amazon Rainforest's Wildlife | Inside Nature's Marvels | Real Wild
The Amazon is the largest river on Earth and at the heart of an extraordinary ecosystem, supporting an abundance of colourful wildlife. The rainforest is still one of the least populated areas in the world, but the greed for more farmland puts pressure on its natural habitat. Nevertheless,
From playlist The Science Of Nature | Spark X Earth Stories X Real Wild X Pets & Vets
Fatal Flight audiobook: Chapter Six: The Airship Flies Again (8/14)
Download this audiobook, view the figures in the print version, or read the appendices at http://www.engineerguy.com/airship. Fatal Flight: The True Story of Britain's Last Great Airship is written by Bill Hammack and read by the author. Fatal Flight brings vividly to life the year of ope
From playlist Fatal Flight: Audiobook
Sign up with brilliant and get 20% off your annual subscription: https://brilliant.org/ZachStar/ STEMerch Store: https://stemerch.com/ Support the Channel: https://www.patreon.com/zachstar PayPal(one time donation): https://www.paypal.me/ZachStarYT ►Follow me Instagram: https://www.insta
From playlist Puzzles
Weekly Space Hangout - June 26, 2015: Paul Sutter, CCAPP Visiting Fellow
Host: Fraser Cain (@fcain) Special Guest: This week we welcome Paul Sutter, the CCAPP Visiting Fellow who works on the cosmic microwave background and large-scale structure. Guests: Jolene Creighton (@jolene723 / fromquarkstoquasars.com) Brian Koberlein (@briankoberlein / briankoberlein.
From playlist Weekly Space Hangout
10/3/16 Intro to MSE polymer structure and morphology
Callister Intro to MSE, polymer crystallinity, degree of polymerization, molecular weight, isotatic, atactic, copolymers, molecular shape, bond angle, thermoset, thermoplastic, polymer xrd, spherulites
From playlist Introduction to Materials Science and Engineering Fall 2016
The Greatest Construction Machinery of The 20th Century [4K] | The Greatest Ever | Spark
Fast paced head-spinning, and informative, Greatest Ever is a top ten count down of the marvels of modern technology. You may not agree, but you'll be grabbed and not let go as our picks are put through their paces in front of our cameras. -- Subscribe to Spark for more amazing science, te
From playlist 4K Science Documentaries
Oseretsky Test of Motor Proficiency | Psych Show & Tell | Psych Streams w/ Dr. Swan
In this edited VOD from June 2021, I go through an older version of the Oseretsky Test of Motor Proficiency (Version 1), which is a psychometric assessment for children to test their gross and fine motor skills. We go through the instruction booklet and discuss the stimuli and testing obje
From playlist Twitch Livestream VODs
Making Spiderman's Web—The Liquid Rope Experiment with Nylon 6,10
In this video I show you a cool experiment synthesizing a nylon polymer from two different liquids. Some have called this the nylon rope trick. I talk about spiderman's web and if it is possible for him to use this method to make his spiderwebs. I talk a little about the chemistry behind
From playlist Science is awesome!