As some parents will already know, head lice infestations can be very difficult to treat. Typically a toxic shampoo or lotion has to first be applied to the sufferer's scalp, after which the lice are removed by pulling a specialized comb through their hair. Louse eggs aren't harmed by such shampoos, however, so the treatment needs to be repeated once they've hatched. This means more nasty chemicals, and more discomfort for the child (or adult). That's why researchers at Germany's Fraunhofer Institute for Surface Engineering and Thin Films have developed an alternative, in the form of a comb that zaps the pests with cold plasma.
In honour of the soon-to-be-released new James Bond film Spectre, our techno-weapons-tinkerin' friend Patrick Priebe has created something else that you should never try building at home. It's a working plasma "cannon" disguised as a digital watch, and is just the sort of thing that 007 might use to escape from the clutches of … well, of the Spectre group.
Murchison Widefield Array (MWA) radio telescope in the Western Australia
desert, a Sydney University student, Cleo Loi, has discovered enormous plasma pipes in the Earth’s upper atmosphere. Thought to be responsible
for possible radio interference with satellite navigation systems, the presence of these objects has been predicted for over 60 years, but never before seen. By imaginatively using the radio telescope to observe
in 3D, Loi was able to image large areas of the
sky using the fast photography capabilities of the MWA to produce a movie
that shows the motions of the plasma in real-time.