- published: 05 Sep 2013
- views: 735875
In mathematics, specifically, in topology, a surface is a two-dimensional, topological manifold. The most familiar examples are those that arise as the boundaries of solid objects in ordinary three-dimensional Euclidean space R3, such as a sphere. On the other hand, there are surfaces, such as the Klein bottle, that cannot be embedded in three-dimensional Euclidean space without introducing singularities or self-intersections.
To say that a surface is "two-dimensional" means that, about each point, there is a coordinate patch on which a two-dimensional coordinate system is defined. For example, the surface of the Earth resembles (ideally) a two-dimensional sphere, and latitude and longitude provide two-dimensional coordinates on it (except at the poles and along the 180th meridian).
The concept of surface finds application in physics, engineering, computer graphics, and many other disciplines, primarily in representing the surfaces of physical objects. For example, in analyzing the aerodynamic properties of an airplane, the central consideration is the flow of air along its surface.
A bullet is a projectile propelled by a firearm, sling, slingshot, or air gun. Bullets do not normally contain explosives, but damage the intended target by impact and penetration. The word "bullet" is sometimes colloquially used to refer to ammunition in general, or to a cartridge, which is a combination of the bullet, case/shell, powder, and primer. This use of 'bullet', when 'cartridge' is intended, leads to confusion when the components of a cartridge are discussed or intended.
Bullets fired from slings, slingshots, and many airguns (including BB guns) travel well below the speed of sound (about 343 m/s or 1126 ft/s in dry air at 20 °C or 68 °F). Low-power handguns have muzzle velocities generally less than the speed of sound (subsonic), while bullets fired from high-power handguns (such as a .44 Magnum) and from rifles have an initial speed faster than the speed of sound, meaning they are supersonic and thus can travel a substantial distance and even hit a target before a nearby observer hears the "bang" of the shot. Bullet speed through air depends on a number of factors such as barometric pressure, humidity, air temperature, and wind speed.
On This episode of Depths of History, Britain goes back to a spot that he has hit several times. He unearthed lots of relics that told the stories of the Civil War and the struggles faced during the gruesome battles. He even found bullets on top of the ground! Amazing Virgin site with tons of relics. He also tells about the History of the site! Please Subscribe for more content of Treasure Hunting and Metal Detecting History! Depths of History Diggers: https://www.facebook.com/groups/928372037224317/ Depths of History T-Shirts! - http://digginittees.com/collections/frontpage/products/depths-of-history Depths of History The Movie and Stickers: http://www.ebay.com/usr/retrievinghistory Please Check out Minelab Metal Detectors www.minelab.com Metal Detectors Used: Minelab X-Terra 705 Mi...
We take a look at mercury's extremely strong surface tension. Mercury is very dense, but what happens if we try to float something even denser, such as a tungsten rod on it? Density is simply a ratio between distilled water and any other substance occupying the same space. It can be a gallon of air and a gallon of water or a ml. of water and a ml. of steel. The ratio is always the same. Can we break through the surface tension of the Hg using soap, or even nitric acid? Check out my Hg Playlist for more cool videos! https://www.youtube.com/playlist?list=PL786EBDC8D2B4CD1D
Backyard Scientists T-Shirts! Limited Edition campaign, buy one now! - http://shop.crowdmade.com/collections/backyardscientist/ Check out my collaboration with Mark Rober here : https://www.youtube.com/watch?v=W4DnuQOtA8E Thanks to Aimed-Research.com for the high speed camera rental! Dont forget about my facebook page https://www.facebook.com/TheBackyardScientistofficial
Top barrel surface machining for 2 degree off set
How many surfaces can a bullet bounce off of while maintaining a lethal velocity? Is it possible for the bullet to return to sender?
Of course the kill was intentional!! I accurately predicted the spawn of the player after I killed him for the first time, knew exactly where he was positioned when he shot at me and therefore deliberately ricocheted the bullet of three surfaces to take him out, it was very simple really! ...That was a joke of course, I am well aware that this kill was probably the luckiest I've ever seen on Halo. I got the kill and initially thought that it was nothing more than a decent no-scope, but when I later reviewed the footage in theatre mode, it turns out that the bullet ricocheted THREE times before landing in the head of the opposition player. I know that I was incredibly fortunate and the only purpose of this video is to entertain, I am not professing to be anything more than a slightly-less-...
Ricochets & Penetration in DayZ are very complicated. We look at how bullet speed, surface toughness, surface thickness and angle of approach affect which bullets penetrate and which bullets ricochet. ➫ WOBO Community Servers: http://www.patreon.com/WOBO ➫ Donations: http://imraising.com/wobo/ ➫ Twitter: https://twitter.com/WOBOtweets ➫ Twitch: http://www.twitch.tv/wobostreams ➫ My PC Specs: http://pastebin.com/XamRSUxg ➫ WOBO Wear: http://wobowear.spreadshirt.com ➫ Subscribe: http://tinyurl.com/mvso9ry
Bullet penetration in CS:GO. It's too complicated to master from looking at the numbers alone, but this video should give you a nice overview on how it works from a technical point of view. Just don't expect it to make you immediately better at shooting through walls. It's all about practising positions on different maps. 0:19 - What determines a bullet's damage 0:46 - How different weapons perform 1:14 - Number of surfaces a bullet can travel through 1:33 - Material type 2:12 - AK47's performance through common materials 2:28 - Props? 2:40 - Material thickness weapon comparison. This only shows weapon drop-off. If you want damage figures click here: http://i.imgur.com/eBeRON6.png 3:32 - Weird situations 3:43 - Conclusion See Slothsquadron and Blackretina's spreadsheet here: https://docs...
In the season finale of Noisey Atlanta, Thomas travels to the house where Peewee Longway and Young Thug shot the video to "Loaded". He hangs with Metro Boomin while Travi$ Scott parties in the living room. Soon, some promethazine surfaces, a bullet hole appears in the dishwasher and Peewee drives Thomas, downtown to a niteclub performance. Warning: Features graphic use of LSD space weed. Episode 1: Welcome to the Trap: http://bit.ly/NOISEY-ATL-E1 Episode 2: Meet the Migos - http://bit.ly/NOISEY-ATL-E2 Episode 3: Gucci & Jeezy: Trap Lords - http://bit.ly/NOISEY-ATL-E3 Episode 4: Trouble with the ATL Twins - http://bit.ly/NOISEY-ATL-E4 Episode 5: Shots Fired in Little Mexico - http://bit.ly/NOISEY-ATL-E5 Episode 6: 2 Chainz Up Close & Personal - http://bit.ly/NOISEY-ATL-E6 Episode 7: The B...
All the problems of deep space travel, bought down to the surface of the planet, such that you can travel about the speed of a bullet within a couple of cm of a gun barrel. Sadly almost no one in the main stream media assessed this stuff critically from a scientific/ engineering point of view. They just took them at their word when they said they could construct the completely untested large scale hyperloop for 1/10th the cost of a regular high speed rail connection. They took them at their word when they said it would only cost 20 bux, and take on 25 minutes. In reality the engineering problems are probably insurmountable. It would be like proposing a floating roadway across the Mediterranean or something. This video was supported though Patreon. Many thanks to all who support my c...
I started my bullet journal on July 25, 2016, so it's been exactly a month. Hope you find this walk-through helpful. I don’t know why my camera was acting funny. Apologies for the grainy quality. - - - - - - - - - - - - - - - - - - - - ✧ Goodies for you & me ✧ ⌁ get 20% off your first Glossier purchase http://bff.glossier.com/ecTFg ⌁ Beauty Heroes: non-toxic beauty subscription box http://bit.ly/2bkxRgQ ⌁ subscribe to Beauty Heroes http://bit.ly/2bLxWxU ⌁ save $5 off your first order on iHerb http://bit.ly/2bNK0Mr ⌁ shop my closet http://bit.ly/2bXXMjh - - - - - - - - - - - - - - - - - - - - Hi, I'm Jenn! Korean-American from New York, currently living in Seoul, Korea. Brandon is my husband and you'll see him often in my vlogs :) I LOVE beauty products, but have really sensitive s...
In this video I go over the ground impacts caused when the bullet collides with a surface. We cover creating and spawning some dust and then apply this to a bullet hole script which aligns the impact to the surface. Links: Smoke texture: http://www.mediafire.com/view/712pz1p... Impact texture: https://drive.google.com/file/d/0B_DS... Bullethole script: https://drive.google.com/file/d/0B_DS... Finished .blend: http://www.mediafire.com/download/kpzwzu7z3ck6w7p/Part_14_Project_FPS.blend Stay Inspired!
Mega Disasters Seconds From Disaster TWA Flight 800 The skin of the electrical wires inside the Boeing 747 that on July 17, 1996 operated TWA Flight 800 were very bad. So when the plane takeoff with its vaporized fuel tank after waiting for a un-onboard passenger (the air conditioning cool the passengers created hot gas), short circuits ripped the skin. The sparks shoots into another metal surface and run into the fuel tank. It exploded, blow a panel that pierced the fuselage. The plane exploded, cause the nose to dived like a bullet. 230 people are dead.
A while back I did a similar video to this showing what each surface received when damaged by explosives or bullets. However shortly after that video was posted, FacePunch made a change to sheet metal that made the video no longer 100% accurate. This video is the attempt to show the accurate values of everything used in raiding, including bone clubs against doors! Kid Friendly Videos ► http://bit.ly/1DbVB07 Not So Kid Friendly Videos ► http://bit.ly/1CHUFNe Check These Out Too! ▼ The Indies Vs Gamers Game Jam of 2015! ► http://bit.ly/1JoL866 Short Indie Games! ► http://bit.ly/1yoGWQF Rust Raids! ► http://bit.ly/1IMX4tn Drunk Prop Hunt! ► http://bit.ly/1HxFVYj Production Music courtesy of Epidemic Sound: http://www.epidemicsound.com This Channel Uses TeknoAxe Royalty Free Music! ► http:...
dubstep mix 2015 2016 playlist dubstep remixes of popular songs dubstep music remix melodic dubstep female vocal dubstep brutal epic dubstep drops gaming music best skrillex new songs hits party dance beatbox ukf dubstep mix Tracklist: 1- Dot Rotten - Overload 2- Dada Life - Kick Out The Epic Motherfucker 3- Kirsty Hawkshaw - Back In Time 4- 3Lau - How You Love Me 5- The Outobots - Time Machine 6- Colin Munroe - Your Eyes 7- Adventure Club - Fade 8- Aluna George - Best Be Believing 9- Bassnectar - You & Me 10- Bebe Rexha - I Can't Stop Drinking About You 11- BT & Arty - Must Be The Love 12- Chachi ft. Natascha Bessez - Never Alone 13- Chase & Status - Flashing Lights 14- Chase & Status - Time 15- Coldplay - Atlas 16- Colin Munroe - The Fight Of My Life 17- Danny Darko - Butterfly (M4DS Re...
Sniper Elite V2 is a 2012 tactical shooter video game developed by Rebellion Developments and published by 505 Games for the PlayStation 3, Xbox 360 and later Wii U consoles and a developer self-published version for Microsoft Windows. It is a sequel/remake of Rebellion's 2005 game Sniper Elite that takes place in the same timeframe and location—the Battle of Berlin in April–May 1945—but with an altered narrative. The game's story follows an American Office of Strategic Services officer who must capture or eliminate the scientists involved in the German V-2 rocket program while the Red Army invades. A prequel named Sniper Elite III was released in 2014 for current and new-generation platforms. Sniper Elite V2 is a third-person tactical shooter that emphasizes a less direct approach to com...
Release date: 24 June 2014 Style: Progressive hard rock, Alternative metal 01. Ocean Floor 02. Ballast 03. Christ Copyright 04. Mr. MTV 05. First Punch 06. Gyre 07. The Matthew Effect 08. I'll Be OK 09. Here's To The Heartache 10. If I Were 11. Friendly Fire 12. Sex & Lies 13. Surface Flames 14. Take A Bullet 15. Jenny 16. God Went North 17. Pyre
This is my first time playing Undertale! I've managed to avoid spoilers, and I can't wait to share this with you guys! SUPPORT ON PATREON: http://patreon.com/instagamrr (OPEN FOR MORE INFO) ►Become a gamrr today! http://bit.ly/BecomeAGamrr --- FIND ME BELOW --- Follow my livestream: http://twitch.tv/instagamrr http://twitter.com/instagamrr http://vine.co/instagamrr http://instagram.com/instagamrr http://facebook.com/instagamrr ABOUT THE GAME: Undertale is a role-playing video game created by indie developer Toby Fox. In the game, players control a human child who has fallen into the Underground, a large, secluded region underneath the surface of the Earth, separated by a magic barrier. The player meets various monsters during a quest to return to the surface, mainly through the comba...
In London, a golden bullet http://bit.ly/239q49x with James Bond's code "007" etched into its surface is received by MI6. It is believed that it was sent by famed assassin Francisco Scaramanga, who uses a golden gun, to intimidate the agent...
Join Steve Cooper, Poser Product Manager, in this 1-hour webinar as he takes you on a tour of the new features in Poser 10 and Poser Pro 2014. Get a look at Subdivision Surfaces, Soft Body and Rigid Body Dynamics with Bullet Physics, the interactive Raytrace Preview, new Morph Brushes, the Comic Book Preview Mode, and Pro 2014's new Fitting Room. We'll finish off the hour with a brief Q&A; session where you can post your questions. There are a lot of exciting new features in Poser 10 and Poser Pro 2014. Be sure to attend this webinar to learn more! To learn more about Poser go to: http://poser.smithmicro.com/ To learn more about this webinar and others like it, go to: http://my.smithmicro.com/webinars/