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DARPA

  • [h=3]DARPA Circuit Achieves Speeds of 1 Trillion Cycles per Second, Earns Guinness World Record[/h]
    Accomplishments in Terahertz Electronics program could pave way for new areas of research and unforeseen applications in the sub-millimeter wave spectrum​
    Officials from Guinness World Records today recognized DARPA’s Terahertz Electronics program for creating the fastest solid-state amplifier integrated circuit ever measured. The ten-stage common-source amplifier operates at a speed of one terahertz (10[SUP]12[/SUP] GHz), or one trillion cycles per second-150 billion cycles faster than the existing world record of 850 gigahertz set in 2012.

    http://www.darpa.mil/NewsEvents/Releases/2014/10/28.aspx



 
DARPA Program “Grows” Lasers Directly on Silicon-Based Microchips

Technique could significantly reduce cost of manufacturing electronics​
DARPA’s Electronic-Photonic Heterogeneous Integration (E-PHI) program has successfully integrated billions of light-emitting dots on silicon to create an efficient silicon-based laser. The breakthrough, achieved by researchers working on the program at the University of California, Santa Barbara (UCSB), will enable the production of inexpensive and robust microsystems that exceed the performance capabilities of current technologies.

http://www.darpa.mil/NewsEvents/Releases/2014/09/10.aspx
 
US Military's Hypersonic Jet Could Fly 5 Times the Speed of Sound

i.livescience.com_images_i_000_061_402_original_melted_glass_sb3dadfc0ee3e77595a1fd3aa4e43fcb1.jpg


http://www.livescience.com/51388-hypersonic-jet-could-fly-mach-5.html
 
Space X Can't launch a ****in rocket but we can fly 5x Mach 1? WTF. did we even go to the moon? It would seem opposite since our space program went to the level of Germany in WWII.
 
SpaceX can launch a rocket just fine. That one just didn't reach its destination. And that isn't the first time. The first test of that hypersonic vehicle, the fins came off (insert joke about lowest bidder here).
 
JamesG said:
SpaceX can launch a rocket just fine. That one just didn't reach its destination. And that isn't the first time. The first test of that hypersonic vehicle, the fins came off (insert joke about lowest bidder here).
Click to expand...


There have been more than a couple of tests (that we know about.)

The problem is that the damn thing gets so hot that it melts.

https://en.wikipedia.org/wiki/NASA_X-43

They can build 'em. They just can't fly them long before they start melting. Not sure why they don't use similar tiles as the shuttle, but apparently they don't.

The concept of a scramjet is way cool. What they do is reflect shock waves inside the combustion chamber in such a way that the waves collide and generate enough heat to ignite the fuel. No moving parts.
 
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