Section of a tumor observed with an optical microscope. The two white forms with brown borders are blood vessels. Inside, gold nanoparticles accumulate against their walls.
Mariana Varna-Pannerec (ESPCI)
Gold can be used to make jewelry, but also to fight cancer. Several clinical trials are currently underway in the United States where patients are being treated with gold nanoparticles.
Before taking that tempting upgrade, ask yourself if it’s really necessary.
The most sustainable phone is the one you already own. But if you're in the market for a new handset, consider choosing one with replaceable parts to avoid having to replace the whole thing again.
A bonobo mother and her child.
Primate populations are declining around the world. The great apes are in danger of disappearing, and that bears a great risk for humanity itself.
iPhones, Boeing 787s, Teslas and a whole host of other technologies all rely on rare metals – so much so that a new era beckons.