Helicopters with Fuel Cells

The old saying that "there is strength in numbers" also applies to fuel cells. To deliver a high enough power output, a number of cells have to be connected in series. Manufacturers normally stack the fuel cells – a structure ...

Lasers are making solar cells competitive

At "Laser 2009" in Munich, Germany, June 15 to 18, Fraunhofer researchers will be demonstrating how laser technology can contribute to optimizing the manufacturing costs and efficiency of solar cells.

Giant tobacco plants that stay young forever

Tobacco plants bloom when they are just a few months old – and then they die. Now, researchers have located a genetic switch which can keep the plants young for years and which permits unbounded growth. In short, an ideal ...

Milestones in human-machine cooperation

Just a little over a year has passed since BBC News ranked the Robo-Mate exoskeleton at No. 2,right after the announcement of the new iPhone, and major technical progress has been made on several fronts.

Nano-dwarves turn tumor assassins

Hair loss, nausea, vomiting, fatigue, loss of appetite, loss of eye lashes and eye brows, susceptibility to infection – the list of possible side effects from chemotherapy is lengthy. Many cancer patients suffer from the ...

Bioactive paper coatings to replace plastic for packaging foods

The amount of plastic waste increases every year. Some of this waste is due to plastic packaging used to protect food. As part of the BioActiveMaterials project, researchers at the Fraunhofer-Gesellschaft have developed an ...

Thinner thermal insulation

(PhysOrg.com) -- Insulation panels that are both thin and effective are expensive. At present these high-end products are built into energy-saving refrigerators. Innovative components and production techniques are now set ...

Energy-autonomous sensors for aircraft

Aircraft maintenance will be easier in future, with sensors monitoring the aircraft skin. If they discover any dents or cracks they will send a radio message to a monitoring unit. The energy needed for this will be obtained ...

Lasers put a shine on metals

(PhysOrg.com) -- Polishing metal surfaces is a demanding but monotonous task, and it is difficult to find qualified young specialists. Polishing machines do not represent an adequate alternative because they cannot get to ...

Writing patterns, logos and lettering in light

(PhysOrg.com) -- Logos and lettering can be written in light using freeform lenses. But how does the surface of the lens have to be structured in order to focus the light in the shape of a specific pattern? This used to be ...

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