Using Sound Waves to Triple Battery Life and Reduce E-Waste

Researchers at Melbourne, Australia’s RMIT University developed an acoustic device that can remove performance-inhibiting rust from batteries, tripling their lifespan and, hopefully, reducing how frequently they are discarded. The researchers used MXene, a nano-material that holds promise as an alternative to lithium batteries, yet is prone to rust. They discovered that high-frequency sound waves cause the MXene battery to vibrate with enough force for the …

Useful Secrets Within a 4.2-Billion-Year-Old Asteroid

Three tiny fragments were collected by a Japanese spacecraft in 2005 from a 4.2-billion-year-old asteroid known as Itokawa. Smaller than the diameter of a hair, these components contain information that could help prevent an asteroid colliding with Earth. Itokawa, a rubble-pile asteroid (created when “solid asteroids collide and the resulting fragments assemble into new structures”), is almost as old as the solar system itself. Held …

How Origami Is Innovating Technology

Origami dates back to the 17th century in Japan, but it wasn’t until the mid-20th century that people began to consider the practice an art form due, in large part, to origami master Akira Yoshizawa. Since then, origami has gone on to become a respected art and now a tool to revolutionize science and technology. For example, the patterns and folds in origami, when applied …