Tiny Quadcopter Weighs Just 19 Grams
Scientists have created Crazyflie, a little 19-gram quadcopter. It features a 2.4 GHz radio chip from Nordic Semiconductors. The quadcopter is lifted and propelled by four rotors, which helps it manage torque-induced control issues. The Crazyflie can ascend vertically very quickly. It also remains fairly stable in flight even when threatened by the wind from a fan.
Life's Little Mysteries: Gift Edition Hardcover Book
Uncover the truth behind more than 100 mysteries that surround us every day with our new hardcover book! Perfect for gifts and classrooms, and suitable for all ages. Some of the included mysteries are:
- Why Do Cats Land on Their Feet?
- How Long Does it Take to Make Petrified Wood?
- What Everyday Things Around Us Are Radioactive?
Find out all of this and much, much more in our NEW hardcover book.
It makes a great gift idea for all ages. more info>>