In functional analysis and related areas of mathematics, a barrelled space (also written barreled space) is a topological vector space (TVS) for which every barrelled set in the space is a neighbourhood for the zero vector. A barrelled set or a barrel in a topological vector space is a set that is convex, balanced, absorbing, and closed. Barrelled spaces are studied because a form of the Banach–Steinhaus theorem still holds for them. Barrelled spaces were introduced by Bourbaki. (Wikipedia).
What exactly is space? Brian Greene explains what the "stuff" around us is. Subscribe to our YouTube Channel for all the latest from World Science U. Visit our Website: http://www.worldscienceu.com/ Like us on Facebook: https://www.facebook.com/worldscienceu Follow us on Twitter: https:
From playlist Science Unplugged: Physics
An animation showing the interior of HMS Colossus, including boilers, engines, magazines and turrets, all protected by armour. For test purposes. No audio. For more details on HMS Colossus, visit http://www.dreadnoughtproject.org/tech/colossus/
From playlist Torpedoes and Big Guns
Ask the Space Lab Expert: What is Space?
Have you ever wanted to go to Space? In this first episode of Space Lab, Brad and Liam from "World of the Orange" take you on an adventure to discover exactly what is Space. You'll find out about the solar system, the big bang, Sci-Fi movies that are becoming reality, and more!
From playlist What is Space? YouTube Space Lab with Liam and Brad
To learn how I made the vacuum pump used to operate this cannon, take a look at this video: http://youtu.be/UkPLu6mgdWA A vacuum cannon is an interesting physics demonstration that shows how much atmospheric pressure there is at the earths surface, though we do not feel it because our bod
From playlist Science & Experiments
How Will War in Space Look Like?
The militarisation of space is happening right now, just like it did in the sea and the air. It’s very likely that humans will continue to shoot each other no matter where they find themselves. But in space, physics is not what we are used to. Conventional arms aren’t going to be used in o
From playlist Military Mechanics
SPACE@NAVI-Kibo WEEKLY NEWS 第107号
今回は、「きぼう」日本実験棟で行われている宇宙実験の話題をお届けします。先月「きぼう」での実験が終了した「Fish Scales実験(宇宙空間における骨代謝制御)」について特集で紹介、また「きぼう」実験運用管制室から実験の最新情報をお送りします。
From playlist Living in Space - Jaxa
Interstellar flight: 10 Hard Facts
We can build powerful rockets able to carry people and machines into orbit, or even vault them to the moon. But our fastest spacecraft don't hold a candle to the distances that define Interstellar Flight. So what's on the drawing boards? What futuristic designs and fuel options promise to
From playlist Spaceten
7 Orbits with the Soyuz Globus Mechanical Computer #Short #InTheWrongOrientation
See full video and explanation on @CuriousMarc
From playlist Soyuz Globus Mechanical Space Nav Computer
A01 An introduction to a series on space medicine
A new series on space medicine.
From playlist Space Medicine
Can A Starfox Barrel Roll Work In Space?
Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Support us on Patreon! http://www.patreon.com/pbsspacetime Help translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g DO A BARREL ROLL! Or
From playlist Teach physics with fun! (video games, sci-fi, etc...)
Could We Launch Spacecraft with a Giant Space Gun?
Instead of using rockets, could we use a giant space gun to launch satellites or even spacecraft into orbit?. Sounds crazy but the idea has been researched and tested on several occasions and although it might not be suitable for humans it could be a solution to getting raw materials lik
From playlist Rockets and Space Craft
Stream Full Episodes of How It's Made: discovery+ ► https://www.discoveryplus.com/show/how-its-made Science ► https://www.sciencechannel.com/tv-shows/how-its-made/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Like us on Facebook: https://www.facebook.com/ScienceChannel F
From playlist How It's Made
Building a High Velocity Vortex Cannon
In this video I build a high power vortex cannon fueled by propane. Check out my sponsor Brilliant for a really fun way to learn! https://www.Brilliant.org/NightHawk I've done a written tutorial on this project on Instructables which you can view here: https://www.instructables.com/id/Hig
From playlist DIY Ballistics
mod-17 lec-18 Basic features of some Hydraulic Pumps and Motors
Fundamentals of Industrial Oil Hydraulics and Pneumatics by Prof. R.N. Maiti,Department of Mechanical Engineering,IIT Kharagpur.For more details on NPTEL visit http://nptel.ac.in
From playlist IIT Kharagpur: Fundamentals of Industrial Oil Hydraulics and Pneumatics (CosmoLearning Mechanical Engineering)
I explain space guns, problems and solutions with space guns and also projects HARP and Babylon in this longest Explained: video yet. Hope you enjoy, and see you in another 2 months! I really hope you enjoy and learn something from this video, and leave any constructive criticisms and ide
From playlist Explained: The Series (2015 - 2017)
Denis Osin: Invariant random subgroups of acylindrically hyperbolic groups
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist Algebra
How to Make a Sniper/Shotgun Airsoft Rifle
After receiving mass requests to create an airsoft sniper rifle over the last few months I put together this simple design. Be sure to leave me a comment, rate, and subscribe. Let me know if there are any other projects you would like me to put together as well! Parts: 5/16" Brake Line (T
From playlist DIY Ballistics
How Lever Action Rifles Are Made! | How It’s Made | Science Channel
An inside look at how lever action rifles are made. #howitsmade #sciencechannel Stream How It's Made: https://www.discoveryplus.com/show/how-its-made About How It's Made: Explore the fascinating world of how everyday items are manufactured and produced. From aluminum foil to contact
From playlist Recent Uploads
Astronomy 101: Space-Based Telescopes
Skynet University: http://skynet.unc.edu/introastro Use Our Telescopes From Anywhere! Astronomy 101: The Solar System Lesson 4: Telescopes Topic: Space-Based Telescopes Next: Lesson 5 Previous: Introduction to Radio Astronomy (http://youtu.be/jCgv7yiSLMQ) In Lesson 4, we explore t
From playlist UNC: Astronomy 101 by Skynet University | CosmoLearning.org Astronomy
The International Space Station continues an uninterrupted human presence in space as a test-bed for future exploration beyond low-Earth orbit and the only science lab in microgravity. This music video featuring the space station and its crews is set to the song "World" by recording artist
From playlist Real Space Stations - YouTube Space Lab with Liam & Brad