Eideard

Raytheon developing 13-lb smart bomb for drone delivery

Under mounting pressure to keep its massive budget in check, the Pentagon is looking to cheaper, smaller weapons to wage war in the 21st century. A new generation of weaponry is being readied in clandestine laboratories across the nation that puts a priority on pintsized technology that would be more precise in warfare and less likely to cause civilian casualties. Increasingly, the Pentagon is being forced to discard expensive, hulking, Cold War-era armaments that exact a heavy toll on property and human lives.

At L-3 Interstate Electronics Corp. in Anaheim, technicians work in secure rooms developing a GPS guidance system for a 13-pound “smart bomb” that would be attached to a small, low-flying drone.

Engineers in Simi Valley at AeroVironment Inc. are developing a mini-cruise missile designed to fit into a soldier’s rucksack, be fired from a mortar and scour the battlefield for enemy targets…

These miniature weapons have one thing in common: They will be delivered with the help of small robotic planes. Drones have grown in importance as the Pentagon has seen them play a vital role in Iraq, Afghanistan and reportedly in the raid on Osama bin Laden’s hideout in Abbottabad, Pakistan…

This comes at a time when expensive weapons programs, like Marine Corps amphibious assault vehicles and Navy cruisers, are being eyed for trims…

“There are a lot of weapons in the military’s arsenal,” said Lt. Col. Brad Beach, an official who coordinates the Marines’ drone technology. “But what we don’t have is something small.”

The military is flush with multi-ton bunker-busting bombs designed to reduce fortified buildings into smoldering rubble. But Marines on the front lines in Afghanistan say there is an urgent need for a weapon that is small and powerful enough to protect them from insurgents planting roadside bombs.

Marines already have small spy drones with high-powered cameras, but what they need is a way to destroy the enemies that their drones discover.

Looking to fill the need, the 13-pound “smart bomb” has been under development for three years. The 2-foot-long bomb is steered by a GPS-guided system made in Anaheim. The bomb is called Small Tactical Munition, or STM, and is under development by Raytheon…

The idea is that the small bomb could be slung under the spy plane’s wing, dropped to a specific point using GPS coordinates or a laser-guidance system, and blast apart “soft” targets, such as pickup trucks and individuals, located 15,000 feet below.

With budget cuts, how will members of Congress maintain their accustomed scale of kickbacks, lobbying contracts post-retirement and trips to golf courses near manufacturers of death and destruction?

Cripes – if Raytheon is funding research on a baby smart bomb all on their own what might be next?

Results of the first study evaluating the use of human urine mixed with wood ash as a fertilizer for food crops has found that the combination can be substituted for costly synthetic fertilizers to produce bumper crops of tomatoes without introducing any risk of disease for consumers.

In the study, Surendra Pradhan and colleagues point out that urine, a good source of nitrogen, has been successfully used to fertilize cucumber, corn, cabbage, and other crops. Only a few studies, however, have investigated the use of wood ash, which is rich in minerals and also reduces the acidity of certain soils. Scientists have not reported on the combinaton of urine and wood ash, they say.

The new study found that plants fertilized with urine produced four times more tomatoes than nonfertilized plants and as much as plants given synthetic fertilizer. Urine plus wood ash produced almost as great a yield, with the added benefit of reducing the acidity of acid soils. “The results suggest that urine with or without wood ash can be used as a substitute for mineral fertilizer to increase the yields of tomato without posing any microbial or chemical risks,” the report says.

I was all set to start peeing next to our tomato plants when my wife pointed out we already have alkaline soil.

An analysis of the engineering and economics for a solar water-heating system shows it to have a payback period of just two years, according to researchers in India.

The current focus in the developed world is on advanced technological approaches to alternative energy sources, such as photovoltaic cells for solar power and harnessing wind and wave with elaborate systems to generate electricity. However, the cost of such systems may be prohibitive for some applications in the developing world. They also often ignore the fact that a mundane process such as heating water might best be carried out using direct heat from the sun rather than including a waste energy-conversion step.

They have compared solar hot-water production per liter with electrical energy approaches and found that solar heating is 57 percent of the internal rate of return.

“Solar energy is the only renewable energy source that has wide range of uses with commercial viability. Solar energy provide water heating, air heating and electricity through various modes of applications. The use of solar energy for thermal purposes is the most cost-effective way of utilizing the resource. A solar water heating system satisfies the need of warm water,” the researchers explain.

Thinking about it. May even go that route before I can get round to saving enough for photo-voltaics for electricity.