Physicists discover the upper limit of electrical resistance in metals
Electrical resistance is easy to notice and hard to pin down. Power lines shed energy as heat, and…
24,000-atom mini universe demonstrates time flow without a clock
What if time isn’t woven into the fabric of reality at all? A new experiment suggests that the…
Historic discovery shows atoms can exist in two places at once
A cloud of helium atoms split, scattered and fell under gravity, yet still behaved as if its parts…