Pressure
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure...
Pressure - Wikipedia
SpaceX Dragon capsule's picture perfect Atlantic splashdown
Dragon has returned to planet Earth. SpaceX’s swanky new crew capsule undocked from the International Space Station and headed toward the Atlantic ocean, landing spot on Florida's coast in a successf...
Brian Cox visits the world's biggest vacuum chamber
Brian Cox visits NASA’s Space Power Facility in Ohio to see what happens when a bowling ball and a feather are dropped together under the conditions of outer space...
America Uses Stealthy Submarines To Hack Other Countries’ Systems
When Donald Trump effectively called for Russia to hack into Hillary Clinton's emails Wednesday, the GOP nominee's remarks touched off a (predictable) media firestorm. Here was a presidential candidat...
Sir Richard Branson unveils new Virgin Galactic Spaceship
Sir Richard Branson unveils a new version of his Virgin Galactic Spaceship.
9 Groundbreaking Early Submarines
The deep-sea submersibles and nuclear subs of today can trace their origins back to the 1500s. The world’s first “underwater boats” were little more than glorified diving bells powered by pedals and h...
Jeff Bezos' Space Company Launches First Reusable Rocket
Amazon.com founder Jeff Bezos beat Elon Musk 's SpaceX on Monday by successfully landing an unmanned test rocket – a historic feat that could greatly reduce the cost of space travel. Amazo...
The Plasma Engine That Could Take Humans To Mars On A Single Tank: Breakthrough In Hall Thrusters Could See Them Power Deep Space Missions
Scientists in the French National Center for Scientific Research have created a 'wall-less Hall thruster' prototype that uses a 45,000 mph stream of plasma to push spacecraft forward. Hall thrusters a...
Know What Your Blood Pressure Should Be. This Study Will Change The Way We Practice Medicine.
It’s easy to get confused by the overly dramatic daily news about health and medicine. One day coffee is great for you, the next day it interferes with sleep and leads to illness. One day the plague i...
Can Rain Clean The Atmosphere?
As a raindrop falls through the atmosphere, it can attract tens to hundreds of tiny aerosol particles to its surface before hitting the ground. The process by which droplets and aerosols attract is co...
Physicist Tests Theories Of Dark Energy By Mimicking The Vacuum Of Space
Besides the atoms that make up our bodies and all of the objects we encounter in everyday life, the universe also contains mysterious dark matter and dark energy. The latter, which causes galaxies to ...
Boeing Patents Flying Drone That Turns Into A Submarine
This April, the US Patent and Trademark Office approved an application from Boeing's Nathan Hiller for a "rapid deployment air and water vehicle." According to Boeing, the patented craft could be carr...
Variations In Atmospheric Oxygen Levels Shaped Earth’s Climate Through The Ages
Variations in the amount of oxygen in Earth's atmosphere significantly altered global climate throughout the planet's history. Efforts to reconstruct past climates must include this previously overloo...
Incredible images of vapour trails and sonic booms created by planes in the sky
Areas of low pressure form around the edge of the wing, creating vortices - tubes of circulating air - that leave spectacular trails of air behind the wing's tips.
The latest disruptive space technology is a battery-powered rocket engine
Rocket Lab, a US and New Zealand-based defense research company, has exploited the increasing power packed by small batteries to develop a new rocket it’s calling the Electron. It says it will cost $4...
Pressure vessel
A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.The pressure differential is dangerous, and fatal accidents ha...
Pressure vessel - Wikipedia
Blood pressure
Blood pressure (BP) is the pressure exerted by circulating blood upon the walls of blood vessels and is one of the principal vital signs. When used without further specification, "blood pressure" usua...
Blood pressure - Wikipedia
Vacuum
Vacuum is space that is devoid of matter. The word stems from the Latin adjective vacuus for "vacant" or "void". An approximation to such vacuum is a region with a gaseous pressure much less than atmo...
Vacuum - Wikipedia
Pressure sensor
A pressure sensor measures pressure, typically of gases or liquids. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit are...
Pressure sensor - Wikipedia
Pressure measurement
Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges.A 'manometer' is an instrument that use...
Pressure measurement - Wikipedia
SM UC-65
SM UC-65 was a German Type UC II minelaying submarine or U-boat in the German Imperial Navy (German: Kaiserliche Marine) during World War I. The U-boat was ordered on 12 January 1916 and was launc...
Three-drum boilers
Three-drum boilers are a class of water-tube boiler used to generate steam, typically to power ships. They are compact and of high evaporative power, factors that encourage this use. Other boiler desi...
Three-drum boilers - Wikipedia
German submarine U-156 (1941)
The German submarine U-156 was a Type IXC U-boat of Nazi Germany's Kriegsmarine built for service during World War II. The keel for this boat was laid on 11 October 1940 at the DeSchiMAG AG Weser yard...
German submarine U-156 (1941) - Wikipedia
HD 75898
HD 75898 is an 8th magnitude star approximately 263 light years away in the constellation Lynx. It is a yellow subgiant, although it is only 3.8 billion years old. The star is 28% more massive, 6...
Oleg Kotov
Oleg Valeriyevich Kotov (Russian: Олег Валериевич Котов) was born on October 27, 1965, in Simferopol, Crimean oblast in the Ukrainian SSR. After a career as a physician assigned to the Soviet spac...
Oleg Kotov - Wikipedia
America Uses Stealthy Submarines To Hack Other Countries’ Systems
When Donald Trump effectively called for Russia to hack into Hillary Clinton's emails Wednesday, the GOP nominee's remarks touched off a (predictable) media firestorm. Here was a presidential candidat...
Dekabrist class submarine
The Dekabrist-class were the first class of submarines built for the Soviet Navy after the October Revolution. They were authorized in the Soviet Naval Shipbuilding Program of 1926.Operational-tactica...
Dekabrist class submarine - Wikipedia