Gravitational waves are generated by accelerating masses. So, our planet, which is constantly accelerating towards the sun, is sending out a constant stream of gravitational waves. Just really small ones. Likewise, colliding neutron stars will emit a strong burst of gravitational waves. How strong? Well, if the stars were on the other side of our galaxy, a one meter bar on Earth would elongate by about 0.1am (attometer = 10-18m).
Squeezed light a small step forward toward detecting gravitational waves - 0 views
-
-
orbit of an electron around a hydrogen atom (about 0.05nm),
-
In a light field, the amplitude (a measure of the brightness of the light) and the phase (which controls how to combine light fields) can't both be measured with absolute accuracy—even if you had the perfect measuring device. You can picture the problem as bunches of photons popping into and out of existence, causing the phase and amplitude of the of the light to jitter around. This doesn't add or subtract energy, but it does continuously redistributes the energy along the light beam.
- ...1 more annotation...
Neural signature of mental time travel | ZME Science - 0 views
-
Neural signature of mental time travel
-
memory triggering
-
“By examining the patterns of brain activity recorded from the implanted electrodes,” Manning said, “we can measure when the brain’s activity is similar to a previously recorded pattern. When a patient recalls a word, their brain activity is similar to when they studied the same word. In addition, the patterns at recall contained traces of other words that were studied prior to the recalled word.” “What seems to be happening is that when patients recall a word, they bring back not only the thoughts associated with the word itself but also remnants of thoughts associated with other words they studied nearby in time,” he said.
Study finds capitalist network of companies runs the world [with list] | ZME Science - 0 views
-
capitalist ne
-
capitalist network of companies runs the world
-
A recent study conducted by researchers from Zurich found that a ‘super entity’ of 147 companies controls 40% of the entire corporate network.
- ...1 more annotation...
Google Alertes - 0 views
FeedEk jQuery RSS/ATOM Feed Plugin - 0 views
1 - 7 of 7
Showing 20▼ items per page