If Birds Can Perch, Why Can't Drones?

What happens when your immune system attacks the point of communication between your nerves and muscles? That's an autoimmune condition called myasthenia gravis, and it leads to muscle weakness that starts around the eyes and can progress to the face, neck, and limbs. Learn about ...  عرض المزيد

The asteroid belt between Mars and Jupiter is made up of sparse, tiny bodies of rock, ice, and metal that give us a window into our solar system's early days. Learn how Jupiter helped form the astroid belt and how asteroids might've given Earth its water (and life!) in today's ep ...  عرض المزيد

S2 Ep 27. The amazing agility of a dragonfly leads to the creation of a new spy drone. Their four wings can move independently of each other, enabling them to fly forwards, backwards, sideways, up and down and suddenly stop and hover like a helicopter. This caught the attention o ...  عرض المزيد

What if you could design a spy plane that could be flown remotely and hover in the sky for hours, providing reconnaissance for troops on the ground? In the early 1980s, the visionary inventor Abe Karem begins building drones out of his L.A. garage. Soon, the Pentagon and the CIA ...  عرض المزيد

What if you could design a spy plane that could be flown remotely and hover in the sky for hours, providing reconnaissance for troops on the ground? In the early 1980s, the visionary inventor Abe Karem begins building drones out of his L.A. garage. Soon, the Pentagon and the CIA ...  عرض المزيد

Up in the Air: How long can a bird stay in the air? How about an airplane? From human flight to the future of laser-powered drone aircraft, the answers may surprise you in this episode of Stuff to Blow Your Mind. And be sure to click here for a mini-gallery of birds and planes ...