Why is morning sunlight so important for health?
Waking up early in the morning is generally not good for people, but if the benefits of sunlight can be obtained by getting up early in the morning, people always…
A drone flying in the atmosphere for 20 months without sunlight
(Photo: BAE Systems) London: A UK solar-powered drone has successfully completed its first flight into the stratosphere. With a wingspan of 115 feet, this drone can fly in the air…