|Solar cells||Rockets||Colossal colliders||Colleges|
|Wind turbines||Spaceship design||Skyscrapers|
|Electric cars||Manned Mars mission||American football|
|Flying_cars||Fission fragment rocket||Natural disaster defense||NCAA|
|Neutralizing nuclear waste||Fusion rocket||Icebergs for freshwater|
|Superconductors||Stratosphere rocket launch||Global warming hysteria|
|Nuclear transmutation||Orbital launch sled||Antarctic wind power||The UFC|
|Thorium nuclear power||L2 telescope farm||Asteroid mining||Power leagues|
|Fertilizer||Terraforming Mars||Asteroid defense||Patents|
|Biochar||Square km radio telescope||Iron fertilizer for carbon sequesterization||The Common Core|
|Lasers||Antarctic telescopes||Great Americans||Brackets and pools|
|Xenon anaesthetic||Black hole reactor||Great American Things||3 Gorges Dam|
|Synthetic diamond and sapphire||Keystone pipeline||Physical Therapy|
|Fullerines||Stopping Antarctic ice||Optometry|
|Solar powered aircraft||Neutron farm||American Medical Association|
|Technologically-critical elements||Textbook price gouging|
|Kalpasar estuary dam||Pharmaceutical price gouging|
A Neptune-sized planet has been hypothesized to exist at a distance of 20 times Neptune's distance. To estimate the brightness of this planet,
Planet X flux = Neptune flux * (Planet X radius / Neptune radius)2 * (Neptune distance / Planet X distance)4 = 1.6e-11 Watts/meter2 * (1/1)2 * (1/20)4 = 1.6e-16 Watts/meter2 Pan-STARRS limit = 5.0e-18 Watts/meter2 Planet X speed = 86 arcseconds/year (for a 15000 year orbit)Pan-STARRS does a full sky survey every month. If Planet X existed, Pan-STARRS would have seen it, and it would have stood out for its proper motion.
Suppose you use a parachute to land a disabled aircraft. The aircraft can decrease its mass by ejecting fuel and engines. There's little point to ejecting the wings because they are lightweight and have a large cross section.
For an Airbus A380,
Empty mass = 270 tons Max unfueled mass = 369 tons with passengers and without fuel Max passenger mass = 99 tons Wing mass = 60 tons Both wings Engine mass = 27 tons 4 engines at 6.7 tons each Max takeoff mass = 575 tons Max landing mass = 394 tons Typical fuel mass = 146 tons Max fuel mass = 320 tons Crash mass = 429 tons Fuselage + wings + passengers. No fuel or engines Fuselage width = 7.14 meters Fuselage height = 8.41 meters Fuselage length = 72.7 meters Fuselage area = 500 meters2 as viewed from above Wing area = 845 meters2 Total area = 1345 meters2 Air density = D = 1.22 tons/meter3 at sea level Drag coefficient = C = 1.0 for wings for falling vertically Velocity = V = (2Mg/A/C/D)½ Falling velocity when gravity = air drag Aircraft mass = M Gravity constant = g = 9.8 meters/second2 Gravity force = Fg= M g Cross-section = A Drag force = Fd= .5 C D A V2 Wing terminal V = 34 meters/second Aircraft terminal V = 71 meters/second Personal parachute = 1.5 kg Up to 100 kg load Personal parachute = 6.2 meters/second Descent rate Personal parachute = 23 meters2
The Martian: Mars max wind ~50 m/s. Earth wind speed with equiv force ~50 m/s *(MarsAirDensity/EarthAirDensity)^.5 ~6 m/s. Not a hurricane
Ceres max mountain height ~ Earth max height * Earthgrav / Ceresgrav * Icetensile / RockTensile ~ 10 km * 9.8 / .29 * 1 MPa / 25 MPa ~ 14 km
Bafflingly, the unit of "Action" = Joule seconds hasn't been given a name. Propositions?
The news site that ranks number one in facebook shares and likes is Breitbart, in spite of the fact that Facebook aggresively censors Breitbart activity from newsfeeds, including the news that Facebook censors Breitbart.
A UFC contract: Gives exclusive rights to the fighter's likeness to Forbid fighters from promoting themselves.
The UFC requires an army of lawyers
Milo's "Dangerous Faggot Tour" of universities has been a fine piece of trolling, exposing the pettiness of the PC zombies.
Coulter's book "Adios America" prophesized the
You were the chosen one! It was said that you would destroy the Republican party, not join it!
Against all opposition, Breitbart triumphed and now owns the political arena.
It has been overwhelmingly established through emails, screenshots, interviews, etc.
*) Sulkowicz was on amorous terms with Nugesser for at least a month after the alleged incident. *) Sulkowicz conspired to have 3 accomplices file complaints against Nungesser, none of which contained evidence and all of which were found to be fraudulent.
Sulkowicz perseveres with her evil. She continues to act as though she had been honest.
One should be wary against the unnecessary centralization of power. The president's powers should be the minimum necessary for the common good and power should be made as local as possible.
Refereeing is an art. The quality of a debate hinges on the quality of the moderator.
Trump has commented that he wants journalists to be critical but fair.
Should have given Marshawn Lynch the ball.