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Submission + - Has radar technology caught up with steath technology? (usni.org)

AbrasiveCat writes: In the continuing game of cat and mouse between offensive and defensive technologies of war, the technology of radar stealth may have been matched by new multiple frequency radar systems. U.S Naval Institute News (http://news.usni.org/2014/07/29/chinese-russian-radars-track-see-u-s-stealth) reports the Chinese and Russians maybe developing such systems. The present radar systems use high frequency waves for accurately locating an incoming target. Stealth aircraft are designed to adsorb or reflect these wave away from the receiver. It turns out longer wave radars can see the stealth aircraft. The longer wave radar lacks the precision of the high frequency radar, but when the two are combined, as the Russians, Chinese (and US) are doing, you can produce accurate targeting radar. The F117 may have been in a golden age for stealth technology, it will be interesting to see if the F35 arrives to late to be effective against other countries with advanced radar systems.

Submission + - NTSB has discovered the cause of the battery failures on the Boeing 787 (ntsb.gov)

AbrasiveCat writes: The National Transportation Safety Board (NTSB) has reported that the battery problems suffered by the Boeing 787 were caused by a short circuit in a cell of the battery. http://www.ntsb.gov/news/2013/130207.html The cause of the short circuit is still under investigation and the plane is still a ways from being cleared to fly passengers again.

Submission + - Space Shuttle Collides with Bridge In New York (space.com)

AbrasiveCat writes: While transporting the space shuttle Enterprise to its new home at the Intrepid Museum a gust of wind caught the shuttle and pushed a wing tip into the South Channel Subway Bridge. With any luck it was just the protective covering that was damaged. Ah New York traffic.

Submission + - Hydrogen Explosion at the #3 Power Plant in Japan (msn.com) 3

AbrasiveCat writes: "New trouble at nuclear power plant in Japan. As reported by the NBC http://www.msnbc.msn.com/id/42056237/ns/world_news-asiapacific/ . There has been an hydrogen/oxygen explosion at the Number 3 unit of the Fukushima Daiichi nuclear plant. This has cause a wall of the plant to be destroyed. The officials are saying the reactor containment remains. This seems to be a result of previously exposing the fuel rods, which caused the creation of the hydrogen gas. There has been no increase in radiation in the area (yet.)"

Quark! Quark! Beware the quantum duck!