Alternative Energies
To get more oomph from an electron gun, tip it with diamondoids

They sound like futuristic weapons, but electron guns are actually workhorse tools for research and industry: They emit streams of electrons for electron microscopes, semiconductor patterning equipment and particle accelerators, to name a few important uses. Now scientists have figured out how to increase these electron flows 13,000-fold by applying a single layer of diamondoids – tiny, perfect diamond cages – to an electron gun’s sharp gold tip.

Geoengineering simulation lets us play with the future

Wherever you stand on geoengineering — whether you think it’s our only chance of survival or a fast track to extinction — we should at least consider the idea. As I argued last year, just studying geoengineering could teach us a lot about the climate and just talking about it could ease some lingering political tensions around climate change. So in the spirit of keeping all options on the table when it comes to preventing a climate catastrophe, check out this interactive geoengineering simulation from the Geoengineering Model Intercomparison Project. It lets you look at what global temperatures could look like between 10 and 50 years from now, if we decide to jump down the geoengineering rabbit hole. Here are the specifics from Slate: This interactive shows temperature…