Solar power is produced by accumulating sunlight and converting it into electricity, being a free energy, the most renewable and potentially least expensive type of energy. The sun in fact is our most valuable natural resource and it can do extraordinary things. Why, we, human beings, don’t use more this wonderful energy coming from the sun? We should explore more the solar power, and creating more solutions. Read the following example.
A lightweight solar-powered plane has smashed the official world record for the longest-duration unmanned flight.
UK defence firm Qinetiq, which built the Zephyr unmanned aerial vehicle, said it flew for 54 hours during tests.
The researchers believe it is the first time a solar-powered craft has flown under its own power through two nights.
The Zephyr’s 54-hour endurance flight will not enter the record books because representatives from the world air sports federation – the FAI – were not notified about the secretive test.
-Lightweight plane (31kg/ 68lb) is launched by hand
-Flies autonomously and can climb to more than 18,000m (58,000ft)
-By day it flies on solar power and recharges batteries.
-By night it is powered by rechargeable lithium-sulphur batteries
Link & Image: news.bbc