U.S. Army Unveils ‘Revolutionary’ XM25 Rifle in Afghanistan

Since the dawn of modern warfare, the best way to stay alive in the face of incoming fire has been to take cover behind a wall. But thanks to a game-changing “revolutionary” rifle, the U.S. Army has made that tactic dead on arrival. Now the enemy can run, but he can’t hide.

After years of development, the U.S. Army has unleashed a new weapon in Afghanistan — the XM25 Counter Defilade Target Engagement System, a high-tech rifle that can be programmed so that its 25-mm. ammunition detonates either in front of or behind a target, meaning it can be fired just above a wall before it explodes and kills the enemy.

It also has a range of roughly 2,300 feet — nearly the length of eight football fields — making it possible to fire at targets well past the range of the rifles and carbines that most soldiers carry today.

Lt. Col. Christopher Lehner, project manager for the semi-automatic, shoulder-fired weapon system for the U.S. Army’s Program Executive Office Soldier, said that the XM25’s capability alone is such a “game-changer” that it’ll lead to new ways of fighting on the battlefield, beginning this month in Afghanistan.

“With this weapon system, we take away cover from [enemy targets] forever,” Lehner told FoxNews.com on Wednesday. “Tactics are going to have to be rewritten. The only thing we can see [enemies] being able to do is run away.”

via U.S. Army Unveils ‘Revolutionary’ XM25 Rifle in Afghanistan – FoxNews.com.

The Recent Future / November 29, 2010 / SciFi, Tech / 0 Comments

Fermilab Experiment Hints At Existence of Brand-New Elementary Particle

A fourth neutrino could help explain dark matter

Physicists working with a Fermilab neutrino experiment may have found a new elementary particle whose behavior breaks the known laws of physics. If correct, their results poke holes in the accepted Standard Model of particles and forces, and raise some interesting questions for the Large Hadron Collider and Tevatron experiments. The new particle could even explain the existence of dark matter.

Working with Fermilab’s MiniBooNE experiment — the first part of the larger planned Booster Neutrino Experiment — physicists found evidence for a fourth flavor of neutrino, according to a new paper published in Physical Review Letters. This means there could be another particle we didn’t know about, and that it behaves in a way physicists didn’t expect.

Neutrinos have been mystifying physicists since they were first theorized decades ago. They are one of the building blocks of matter, and to the best of our knowledge, they come in three varieties, called flavors: electron neutrinos, muon neutrinos and tau neutrinos. Oscillation is what happens when neutrinos turn from one flavor to another; an electron neutrino might turn into a muon neutrino, and then turn back again. How often they do this tells physicists about the infinitesimally small differences in their masses. Neutrino mass is important because it may lead us to physics beyond the Standard Model. And that is exactly what seems to have happened.

via Fermilab Experiment Hints At Existence of Brand-New Elementary Particle | Popular Science.

The Recent Future / November 22, 2010 / SciFi, Tech / 0 Comments