Bike safety gizmo looks like it's straight outta Star Wars
Portable ECG is aimed to be hands – or feet – above others
Helmet-based headphones can head off on their own
Transparent heating pad could have users seeing red
Silicon sawdust – coming soon to a battery near you?
Scientists tell lampreys to scram
Could hearing loss be treated with a shot to the ear?
Polymer probe measures mercury in fish flesh