Sun Power 2nd Solar plane is a good textbook for popular Science

communication and arrangement between the embassies of scriptures and Switzerland, Swiss sunshine power 2 Number Solar aircraft

successfully entered China, and carried out the propaganda of energy popularization, planned to 4 Month A Day, in the South

Beijing International Airport, Sunshine Power 2 under the large wing of the number of popular science activities.

Why would a solar plane fly? Children under the wing listen to science, easy to engage in

Understand that when the air flow through the wing upper and lower surface at high speed, due to the difference in speed,

Can lift the wing, allowing the aircraft to fly in the air, but this requires

The propeller pulls the plane forward. The motor-driven propeller rotates rapidly, producing enough

of tension. The electric motor is powered by a solar battery.

The wings are covered with solar panels, and when the sun shines on the panels, the semiconductor silicon

The resulting solar panels generate current, converge to drive the motor, and charge the battery

Electric.

In fact, the efficiency of light and electricity conversion is not very high, the rest of the solar energy into heat

Can be lost. When sailing at night, solar panels need to be insulated to avoid damaging

Bad. This requires insulation using an insulated insulation film. This is a high technology. In driving

The outside of the cabin is coated with this insulating film to protect the driver from freezing at night, and the Little friend

Friends may wish to touch with a small hand.

Solar planes can't fly very fast, because power supplies are limited. When the solar plane

Speed up to more than 20 kilometers per hour can fly in the air does not fall down, therefore,

If the plane is flying in the wind, it can "hang" in the air, or even fly backwards.

Yes.

The main structure of the solar aircraft consists of light carbon materials, including the cockpit. Too

The Yang can plane is very big, the weight is very light. The big wings of the solar plane are very learned.

Ask, the mysteries of which await you to uncover.

Shimen 4 Month 6 Day

Sun Power 2nd Solar plane is a good textbook for popular Science