Harald Franzen

Auto safety: Aluminum with bubbles for cars that go boom.

Boston's Trinity Church, a landmark building, needed a new heating and ventilation system. The solution: a geothermal heat pump.

Cameras and videophones break the ice.

Manufacturing: VW's luxurious new factory is pure Fahrvergnügen.

Aviation: Boeing hopes a hot technology will take to the air.

Health: Perspiration, however odiferous and uncomfortable, is good.

Automotive: The truth behind the auto raters who always seem to have good news.

Automotive construction: Soybeans are on the ingredient list for tractors. Are cars next?

Aviation Design: A new idea for taking on the jets.