ScienceDaily: Strange Science News


Galactic gamma ray bursts predicted last year show up right on schedule

Posted: 13 Jul 2021 01:52 PM PDT

Astronomers see many periodic emissions from space, typically caused by rotation of stars and often very regular. Astrophysicists noticed a unique periodicity in the soft gamma ray emissions from a magnetar located in our galaxy. The soft gamma repeater SGR1935+2154 appears to emit bursts only within regularly spaced windows, and is inactive in between. Based on their analysis, they predicted a resumption of bursts last month; so far, a dozen have been detected.

This device harvests power from your sweaty fingertips while you sleep

Posted: 13 Jul 2021 09:03 AM PDT

Researchers have developed a new device that harvests energy from the sweat on -- of all places -- your fingertips. To date, the device is believed to be the most efficient on-body energy harvester ever invented, producing 300 millijoules (mJ) of energy per square centimeter without any mechanical energy input during a 10-hour sleep and an additional 30 mJ of energy with a single press of a finger.

Simulating microswimmers in nematic fluids

Posted: 13 Jul 2021 08:08 AM PDT

New research shows how control over self-propelled microswimmers could be achieved using exotic materials named 'nematic liquid crystals' - whose viscosity and elasticity can vary depending on the direction of an applied force.

'Hydrogel-based flexible brain-machine interface'

Posted: 13 Jul 2021 06:36 AM PDT

A research team revealed a newly developed hydrogel-based flexible brain-machine interface.

Resilience, not collapse: What the Easter Island myth gets wrong

Posted: 13 Jul 2021 06:01 AM PDT

New research suggests that the demographic collapse at the core of the Easter Island myth didn't really happen.