In category theory, a branch of abstract mathematics, a tower is defined as follows. Let be the poset of whole numbers in reverse order, regarded as a category. A (countable) tower of objects in a category is a functor from to . In other words, a tower (of ) is a family of objects in where there exists a map if and the composition is the map (Wikipedia).
Tallest Towers in the World Height Comparison 2019 - 3D
Tallest Towers in the World Height Comparison 2019 This is a list of extant towers that fulfill the engineering definition of a tower: "a tall human structure, always taller than it is wide, meant for public or regular operational access by humans, but not for living in or office work, an
From playlist Comparison
A Rare Look Inside Shanghai Tower
Get a glimpse of the sky gardens, which set Shanghai Tower apart from any high-rise ever built. http://bit.ly/1aNxP18
From playlist Shanghai Tower | The B1M Mail Feature
Who Built a Secret Mountaintop Mansion on Top of This Skyscraper?
What on Earth? Drone and satellite images revealed an enormous garden on top of a skyscraper, complete with a vineyard and swimming pool. Full Episodes Streaming FREE on Science GO: https://www.sciencechannelgo.com/what-on-earth/ Dig into more mysteries: http://www.sciencechannel.com/tv-s
From playlist What on Earth?
The World's Tallest Skyscrapers Aren't Really That Tall
Thanks to Pepperonin for supporting us on Patreon and making this video possible! Support us here: http://bit.ly/2qBHc Having the title of world's tallest skyscraper is an exemplary achievement for developers across the world. Ever since man started to build up, we've been competing to se
From playlist Concerning Engineering
Calculate The Height Of Any Tall Object!
Video will show you how to calculate the height of any tall object without having to climb it!
From playlist How to videos!
Tallest Buildings In History To Scale (1 pixel = 1 meter)
Top 10 tallest buildings in history over time (3200BC to 2021) using to-scale building images where 1 pixel on the screen is equal to 1 meter when viewed in full 1080p quality. Building height for this video is generally "architectural height", meaning the tallest of roof & spire height.
From playlist Data Visualizations
How To Build A Skyscraper | Super Structures | Spark
Skyscrapers illuminate the amazing designs and monumental human efforts that have forever altered our urban landscapes. Peel back the outer layer of the world’s tallest buildings and delve into the newest achievements of structural composition. Subscribe to Spark for more amazing science,
From playlist Super Structures
The Tallest Towers Ever Built... So Far
Rising to unbelievable heights, broadcasting to millions and becoming landmarks in their own right, these freestanding towers are among the tallest structures ever built. For more by The B1M subscribe now - http://ow.ly/GxW7y Read the full story on this video, including images and useful
From playlist The World's...
Unity Tutorial | How To Create A Base Defense Game In Unity | Session 08 | #unity | #gamedev
Don’t forget to subscribe! In this Unity tutorial, you will learn to create a base defense game in Unity. In this tutorial, We'll be creating a Base Defense game from scratch using the Unity game development engine. Remember those good old Tower and Base defense games of old? Warcraft
From playlist Create A Base Defense Game In Unity
Unity Tutorial | How To Create A Base Defense Game In Unity | Session 15 | #unity | #gamedev
Don’t forget to subscribe! In this Unity tutorial, you will learn to create a base defense game in Unity. In this tutorial, We'll be creating a Base Defense game from scratch using the Unity game development engine. Remember those good old Tower and Base defense games of old? Warcraft
From playlist Create A Base Defense Game In Unity
Unity Tutorial | How To Create A Base Defense Game In Unity | Session 07 | #unity | #gamedev
Don’t forget to subscribe! In this Unity tutorial, you will learn to create a base defense game in Unity. In this tutorial, We'll be creating a Base Defense game from scratch using the Unity game development engine. Remember those good old Tower and Base defense games of old? Warcraft
From playlist Create A Base Defense Game In Unity
Unity Tutorial | How To Create A Base Defense Game In Unity | Session 20 | #unity | #gamedev
Don’t forget to subscribe! In this Unity tutorial, you will learn to create a base defense game in Unity. In this tutorial, We'll be creating a Base Defense game from scratch using the Unity game development engine. Remember those good old Tower and Base defense games of old? Warcraft
From playlist Create A Base Defense Game In Unity
The Drag Equation (Empire State Building v Eiffel Tower) - Numberphile
Tom Crawford discusses drag - then we drop the Empire State Building and Eiffel Tower into the ocean... Check out Brilliant (get 20% off their premium service): https://brilliant.org/numberphile (sponsor) More links & stuff in full description below ↓↓↓ Find out more about Tom Crawford:
From playlist Tom Crawford on Numberphile
Physics - Mechanics: Ch 15 Torque (10 of 27) When Will A Car Tip Over?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain when a car will tip-over on a banked road due to equilibrium and center of gravity. Next video can be seen at: https://youtu.be/2VL_q9auq4U
From playlist PHYSICS 15 TORQUE
Connections between classical and motivic stable homotopy theory - Marc Levine
Marc Levine March 13, 2015 Workshop on Chow groups, motives and derived categories More videos on http://video.ias.edu
From playlist Mathematics
Stream archive: Screeps Arena CTF with Rust (2022-06-12)
Brooks Builds code: [https://github.com/brooks-builds/brooks_builds](https://github.com/brooks-builds/brooks_builds) Yew Component Library Code: [https://github.com/brooks-builds/yew_component_library](https://github.com/brooks-builds/yew_component_library) Screeps Arena code: [https
From playlist Screeps
You’re walking down the street and see a colossal tower crane. This giant structure seems as if it has always been there; however, it wasn’t when you passed the same road just a few days ago. It is quite surprising to see that happen in such little time. It might make you wonder about how
From playlist Engineering Wonders
Why the Eiffel Tower has a Secret Apartment on Top
Enjoy 10% off 6” and 8.5” MOVA Globes with code ITSHISTORY. Shop now on https://bit.ly/movaitshistory When Gustave Eiffel’s company built Paris’ most recognizable monument for the 1889 World’s Fair, many regarded the massive iron structure with skepticism. Today, the Eiffel Tower, which c
From playlist IT'S HISTORY Feature Videos
Matthew Morrow: Relative integral p-adic Hodge theory
Abstract: Given a smooth scheme X over the ring of integers of a p-adic field, we introduce the notion of a relative Breuil-Kisin-Fargues module M on X. Each such M simultaneously encodes the data of a lisse étale sheaf, a module with flat connection, and a crystal, whose cohomologies are
From playlist Algebraic and Complex Geometry