A revolving door typically consists of three or four doors that hang on a central shaft and rotate around a vertical axis within a cylindrical enclosure. Revolving doors are energy efficient as they, acting as an airlock, prevent drafts, thus decreasing the loss of heating or cooling for the building. Revolving doors were designed to relieve the immense pressure caused by air rushing through high-rise buildings (referred to as stack effect pressure) while at the same time, to allow large numbers of people to pass in and out. (Wikipedia).
A way to connect fluid to a swinging cylinder. Fluid enters and leaves the swinging cylinder through its stationary pivot so flexible pipes are not needed. All pink parts are stationary. The arrows show fluid flows.
From playlist Mechanisms
http://www.mekanizmalar.com This is a flash animation of a hydraulic closed center valve.
From playlist Pneumatic and Hydraulics
Suddenly discovered a snake on my front door.. Anyone know what snake it is? Carpet python?
From playlist Interesting videos
TollGate: Magic in the subway 지하철 마술
It took me a while to find a way to do that. But it is worth the brainstorming. The sound around is quite loud, so the beep can't be heard very clearly. Too bad. No video nor sound editing. Enjoy! By the way, this is perfectly legal.
From playlist My Magic
Fixed Swashplate Rotating Barrel
http://www.mekanizmalar.com/fixed_swashplate_rotating_barrel.html An axial piston pump has a number of pistons (usually an odd number) arranged in a circular array within a housing which is commonly referred to as a cylinder block, rotor or barrel. This cylinder block is driven to rotate
From playlist Pneumatic and Hydraulics
The Revolving Door: Where did it come from? | Stuff of Genius
Today, revolving doors are a common sight in large buildings across the world, but how did they get here? This episode revolves around Theo Kannel and his astonishing Stuff of Genius. Stuff of Genius tells the story behind everyday inventions. From the bikini to super wheat and everything
From playlist Stuff of Genius: Where did it come from?
Last year my son Josh and I got a very special invitation to go meet a group of hobbyists dedicated to preserving a bit of history. I truly appreciate people whose passion for collecting intersects with my love of history. That is why we were so excited to attend the Colt Collectors assoc
From playlist US History
Are Our Choices Really Our Own? | Real Stories Full-Length Documentary
Life is about choice. What we eat, what we read, who we elect; every day we make choices that determine how we want to live. But what if these choices are just an illusion? Freedom From Choice examines the current state of life and personal choice today. Experts from many different field
From playlist Mysterious Documentaries
The Motor Show: Cars for Women (1967) | British Pathé
At the motor show in Earls Court, London in 1967, their main focus seems to have been attracting women drivers. In this remarkable archive footage, all sorts of classic cars are on display from the Triumph TR5 to a convertible Rolls-Royce. For Archive Licensing Enquiries Visit: https://g
From playlist British Pathé | Explore the Archive
Finding torque for angled forces | Physics | Khan Academy
In this video David explains how to determine the torque exerted by a non perpendicular force. Watch the next lesson: https://www.khanacademy.org/science/physics/torque-angular-momentum/torque-tutorial/v/rotational-version-of-newtons-second-law?utm_source=YT&utm_medium=Desc&utm_campaign=p
From playlist Torque and angular momentum | Physics | Khan Academy
Came home and found a giant giant lizard on my door. Filmed it. Scary.
From playlist Interesting videos
Black Mesa LP Blind PART 41: Tanks Everyone -- Chapter 12
Black Mesa is released! In this video series I play through the game (as far as has been released so far), trying my best to pay attention to all detail, hence "longplay". I also try to do some additional research and provide informative bulletins on various details within the game, whenev
From playlist Black Mesa - Blind Longplay
How to Win a Bike Race: Using Gears
Learn about the forces of torque and how it can make you a better cyclist. License: Creative Commons BY-NC-SA More information at http://k12videos.mit.edu/terms-conditions
From playlist Physics
Italian Pistols of World War 1 I THE GREAT WAR Special feat. C&Rsenal
Italian Gisenti 1910 Pistol in detail: https://www.youtube.com/watch?v=M7eLhcNRwps In this edition of our live stream episodes with C&Rsenal we take a look at the Italian pistols of World War 1. » HOW CAN I SUPPORT YOUR CHANNEL? You can support us by sharing our videos with your friends
From playlist SPECIAL EPISODES - The Great War
Black Mesa LP Blind PART 16: No OSHA Compliance -- Chapter 6
Black Mesa is released! In this video series I play through the game (as far as has been released so far), trying my best to pay attention to all detail, hence "longplay". I also try to do some additional research and provide informative bulletins on various details within the game, whenev
From playlist Black Mesa - Blind Longplay
Alien Isolation Part 20 - LIVESTREAM - The RETURN! [Nightmare Mode]
Welcome to Alien Isolation - Halloween Special let's play. We are Ripley's daughter. Time to survive the horror! I've been playing this bloody game for over a year now... Buy it here to suffer with me: http://amzn.to/2y7zLhb This is going to be a full playthrough of the game. Part 1: htt
From playlist Alien Isolation