But [The Action Lab] shows that we already have see-through metal, just not aluminum. You can see a video about why metals are normally opaque. The metal in question is sodium. Normally ...

But [The Action Lab] shows that we already have see-through metal, just not aluminum. You can see a video about why metals are normally opaque. The metal in question is sodium. Normally ...

A technology that can directly charge a battery ... the gap between devices and opaque metal wires has solved the problem of damaging the aesthetics of transparent solar cells.