According to the World Health Organization, 2.1 billion people do not have access to safe drinking water. Many of them rely on wells and streams, making testing the water for bacterial contamination of crucial importance. However, cheap and reliable testing equipment is often not available or not affordable. Scientists in Britain and elsewhere are working on a simple, paper-based test that can confirm that water is safe in a matter of seconds. VOA's George Putic reports.
An estimated 5 million people around the world are bitten by venomous snakes each year, and more than 100,000 victims die. In many cases the key to survival is anti-venom, but getting the right treatment can depend on knowing what kind of snake did the biting. Some new medical tech developed in Denmark is taking the guesswork out of the snake bite business. VOA's Kevin Enochs reports.
The high cost of living makes finding affordable child care a challenge in Silicon Valley. Three moms have founded the online platform "Roovillage" to help ease the burden. VOA's Calla Yu reports from San Mateo, California.
Virtual reality allows the user to enter a different world through sight and sound. Now, researchers are adding a sense of touch to the experience, making the virtual world seem even more real. The ability to feel an object in the virtual world has quite a few real-world applications. VOA’s Elizabeth Lee spoke to one French company about its device.