When it comes to hanging things on a wall in a straight line, a laser level can go a long way towards making that easier to accomplish. A new device called Sure Hang aims to make the laser level even more useful by allowing it to integrate directly with a tape measure for hanging things up at a perfect interval along a level, straight line.
In order to monitor their blood glucose levels, diabetics typically have
to perform painful and inconvenient finger-prick blood tests – in some
cases, several times a day. Using an implantable glucose-monitoring sensor
is one alternative, although it must be surgically installed and
subsequently removed for replacement. Another option may be on the way,
however, in the form of a device that simply shines a laser on the
MIT researchers claim to have created a method to better observe fermions – the sub-atomic building blocks of matter – by constructing a microscope capable of viewing them in groups of a thousand at a time. A laser technique is used to herd the fermions into a viewing area and then freeze them in place so all of the captured particles can be imaged simultaneously.