Home
Videos uploaded by user “Alex Tseng”
fuccin normies gtfo
 
00:43
this is what trash talkers get, i screen shot their face and rekt them on my edits.
Views: 37 Alex Tseng
News: fake ni🅱️🅱️a gets sp00ked
 
00:33
Reporting News: A fake nibba was spotted down in the middle of the streets of vehicle simulator st. Witnesses have reported seeing a floating guitar on the middle of the road and disappearing out of sight.
Views: 20 Alex Tseng
penis venus, take my cleanness
 
00:15
gay day
Views: 22 Alex Tseng
blondes be like
 
00:29
blondes are immortal
Views: 20 Alex Tseng
srry i only bite my nails when i'm stressed out.
 
00:29
would u like that with a drink of pomegranate sauce?
Views: 23 Alex Tseng
fuck a coop i need a mansion
 
01:02
https://www.youtube.com/watch?v=pK0CJvYYlGQ original song link don't copyright strike me for fuck sakes man its annoying
Views: 13 Alex Tseng
swear to god even if i don't believe in god
 
00:21
Created with WeVideo Video Editor (http://www.wevideo.com). Download Android App at http://bit.ly/10xf4Ec
Views: 25 Alex Tseng
suicide prevention ad
 
00:57
National Suicide Prevention Lifeline We can all help prevent suicide. The Lifeline provides 24/7, free and confidential support for people in distress, prevention and crisis resources for you or your loved ones, and best practices for professionals. Call 1-800-273-8255
Views: 27 Alex Tseng
4.7 my ass
 
00:33
in russia, we drive on the left side of the road
Views: 8 Alex Tseng
is yacht a boat
 
01:09
n a n i
Views: 3 Alex Tseng
if a white guy was in prison
 
00:37
Created with WeVideo Video Editor (http://www.wevideo.com). Download Android App at http://bit.ly/10xf4Ec
Views: 20 Alex Tseng
vehicle simulator my ass
 
00:34
A helicopter is a type of rotorcraft in which lift and thrust are supplied by rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward, and laterally. These attributes allow helicopters to be used in congested or isolated areas where fixed-wing aircraft and many forms of VTOL (vertical takeoff and landing) aircraft cannot perform. The English word helicopter is adapted from the French word hélicoptère, coined by Gustave Ponton d'Amécourt in 1861, which originates from the Greek helix (ἕλιξ) "helix, spiral, whirl, convolution"[1] and pteron (πτερόν) "wing".[2][3][4][5] English language nicknames for helicopter include "chopper", "copter", "helo", "heli", and "whirlybird". Helicopters were developed and built during the first half-century of flight, with the Focke-Wulf Fw 61 being the first operational helicopter in 1936. Some helicopters reached limited production, but it was not until 1942 that a helicopter designed by Igor Sikorsky reached full-scale production,[6] with 131 aircraft built.[7] Though most earlier designs used more than one main rotor, it is the single main rotor with anti-torque tail rotor configuration that has become the most common helicopter configuration. Tandem rotor helicopters are also in widespread use due to their greater payload capacity. Coaxial helicopters, tiltrotor aircraft, and compound helicopters are all flying today. Quadcopter helicopters pioneered as early as 1907 in France, and other types of multicopter have been developed for specialized applications such as unmanned drones. The earliest references for vertical flight came from China. Since around 400 BC,[8] Chinese children have played with bamboo flying toys (or Chinese top).[9][10][11] This bamboo-copter is spun by rolling a stick attached to a rotor. The spinning creates lift, and the toy flies when released.[8] The 4th-century AD Daoist book Baopuzi by Ge Hong (抱朴子 "Master who Embraces Simplicity") reportedly describes some of the ideas inherent to rotary wing aircraft.[12] It was not until the early 1480s, when Italian polymath Leonardo da Vinci created a design for a machine that could be described as an "aerial screw", that any recorded advancement was made towards vertical flight. His notes suggested that he built small flying models, but there were no indications for any provision to stop the rotor from making the craft rotate.[15][16] As scientific knowledge increased and became more accepted, people continued to pursue the idea of vertical flight. In July 1754, Russian Mikhail Lomonosov had developed a small coaxial modeled after the Chinese top but powered by a wound-up spring device[14] and demonstrated it to the Russian Academy of Sciences. It was powered by a spring, and was suggested as a method to lift meteorological instruments. In 1783, Christian de Launoy, and his mechanic, Bienvenu, used a coaxial version of the Chinese top in a model consisting of contrarotating turkey flight feathers[14] as rotor blades, and in 1784, demonstrated it to the French Academy of Sciences. Sir George Cayley, influenced by a childhood fascination with the Chinese flying top, developed a model of feathers, similar to that of Launoy and Bienvenu, but powered by rubber bands. By the end of the century, he had progressed to using sheets of tin for rotor blades and springs for power. His writings on his experiments and models would become influential on future aviation pioneers.[15] Alphonse Pénaud would later develop coaxial rotor model helicopter toys in 1870, also powered by rubber bands. One of these toys, given as a gift by their father, would inspire the Wright brothers to pursue the dream of flight.[17] In 1861, the word "helicopter" was coined by Gustave de Ponton d'Amécourt, a French inventor who demonstrated a small steam-powered model. While celebrated as an innovative use of a new metal, aluminum, the model never lifted off the ground. D'Amecourt's linguistic contribution would survive to eventually describe the vertical flight he had envisioned. Steam power was popular with other inventors as well. In 1878 the Italian Enrico Forlanini's unmanned vehicle, also powered by a steam engine, rose to a height of 12 meters (40 ft), where it hovered for some 20 seconds after a vertical take-off. Emmanuel Dieuaide's steam-powered design featured counter-rotating rotors powered through a hose from a boiler on the ground.[15] In 1887 Parisian inventor, Gustave Trouvé, built and flew a tethered electric model helicopter.[citation needed]
Views: 23 Alex Tseng

Indian rail mobile ticketing application letters
Cover letter sample for nurses
Unemployment application las vegas nv
Jack in the box jobs applications
School admission cover letter example