Hypersonic speed is five times the speed of sound. Scientists measure speeds this fast with a Mach number, named for Austrian physicist Ernst Mach. Sound has a speed of Mach 1 and anything Mach 5 or above is considered hypersonic. While the speed of sound changes depending on temperature and...
The fastest manned aircraft until its retirement in 1989, the Mach 3+ Blackbird also used a hybrid engine, sometimes called a turboramjet [sources: National Museum of the USAF; Smithsonian; Ward]. We'll dive into the SR-71 and other ramjet hybrids and subtypes in the next section. Rudi ...
If you planted a cannabis seed today, when is the soonest you could be actually smoking your harvest? Probably about 2 months with a quick-finishing autoflowering strain. (Learn how to get to harvest as fast as possible!) Indoor grows tend to be shorter than outdoor grows since you have...
Lockheed’s Skunk Works is another organization with a reputation for breaking with tradition. In addition to the U-2 and the Mach 3 SR-71 Blackbird, the Skunk Works was responsible for the first stealth attack fighter: The F-117, without a single curve in its exterior surface, had to b...
One of the important reasons these flights cruise beyond 500,000 feet is impossible is the air is too thin. Hence continuous burning of jet fuel is almost impossible at higher altitudes. Though there are some exceptions in such circumstances, such as the SR71Blackbird has set the record by ...
“But there are heat dissipation challenges that go with that, especially when something is operating at a very high data rate. You have to possess expertise in thermal management to solve those problems.” Further compounding the heat challenge is that the amount of data being handled ...