Repeat five times. Jumping jacks 10; jump rope for 20 seconds (or a 50-meter jog if outdoor pullup bar) Squats 10; Push-ups 10; Pull-ups 5 (or TRX squat/rows)The next weighted section can be with ...

However, with smart use of disorder-induced confinement, nanophotonic circuits 100 times smaller – only one-tenth of a millimeter long – can store light for a similar time. Non-invasive method ...