Very interesting video
These are a few of the people that makes life worth living
"Are you the SAT because I’d do you for 3 hours and 45 minutes with a 10 minute break halfway through for snacks, and then I can stare at you for like 10 minutes and think ‘wow, I hope I don’t ruin this.’"- Dude on OKC with the best pick up lines I have ever heard (via sea-0f-lov3)
Geography class + online format = a joke
"The SR-71’s modified Pratt & Whitney JT11D-20 is actually two engines in one.
The first component functions pretty much just like every jet engine ever made. You know how it goes, intake from the front air inlets, compression by the turbofans, ignition in the turbine, and finally exhaust.
The problem with this is at extreme speeds nearing Mach 2.75 the materials used in the compression stage are reaching a temperature limit where they cannot contribute any more power. The turbofans are literally at the limit of how much additional air they can pack in the turbine for compression and ignition. Push them too far and you could literally melt the fins off your turbine section. Many a MIG-25 Foxbat pilots blew their advanced Tumansky engines chasing SR-71’s this way.
The way the SR-71 solves this problem is by bypassing the entire jet compression sequence altogether. At speeds reaching Mach 3, the engine switches primarily to using the afterburner, the final combustion sequence in a jet engine, by using a series of bypass tubes from the front intake. It uses the natural compression of air going in at supersonic speeds and creates the ignition purely in the afterburner. Instead of thousands of moving parts in the turbine, now there are only a handful of valves and inlet spikes that regulate the flow of fuel and air.
For all intents and purposes, this plane is now like a rocket (technical term is a Ramjet). In fact the main turbine at the front of the engine at this stage is just idling as if on the tarmac. It can cruise easily at Mach 3.4 and in fact it’s theoretical speed limit is based purely on the amount of fuel ignited in the afterburner in a given time period and the limitations placed on the airframe, not the engine.” - nickrct on Reddit
I COULDN’T PULL MYSELF TO PRACTICE MY SPEECH AND NOW MY SPEECH CLASS IS CANCELLED TODAY. I’M SO HAPPY THAT THIS ALWAYS HAPPENS TO ME :^)
I completely spaced taking a quiz that was supposed to be taken by midnight this Sunday. I just got an E-mail that tells me that the deadline has been extended by one extra day. Stuff like this always happens for me, I swear I’m the luckiest bastard there is. I couldn’t accidentally miss a deadline if I tried.
lol @ me