The US has been selling off its helium reserve, established in the 1920s to provide gas for airships – but even so, shortages have been occurring. Some scientists believe a finite reso... Read more
Inflated gas prices have put researchers and industry under pressure US lawmakers have taken a significant step towards averting a global crisis in helium supply, thanks to a bill passed by... Read more
At the Chiba Institute of Technology, a group led by Shuro Nakajima has developed a robot wheelchair that can climb over steps. This robot can make a variety of movements, using its four-whe... Read more