PhysicsThat's odd: Why is gravity so weak?Why isn’t an entire planet’s gravity enough to rip a magnet off your fridge door? Finding an answer is essential to unify physics and explain our existenceFeatures
PhysicsHow to cook up 'foamy' space-time in the lab The quantum foam thought to constitute space-time could now be whipped up in the lab, by creating transient "black holes" ¿ìè¶ÌÊÓÆµ