The Casimir effect: a force from nothing
The attractive force between two surfaces in a vacuum - first predicted by Hendrik Casimir over 50 years ago - could affect everything from micromachines to unified theories of nature.
Although the Casimir force seems completely counterintuitive, it is actually well understood. In the old days of classical mechanics the idea of a vacuum was simple. The vacuum was what remained if you emptied a container of all its particles and lowered the temperature down to absolute zero. The arrival of quantum mechanics, however, completely changed our notion of a vacuum. All fields – in particular electromagnetic fields – have fluctuations. In other words at any given moment their actual value varies around a constant, mean value. Even a perfect vacuum at absolute zero has fluctuating fields known as “vacuum fluctuations”, the mean energy of which corresponds to half the energy of a photon.
https://physicsworld.com/a/the-casimir-effect-a-force-from-nothing/
The attractive force between two surfaces in a vacuum - first predicted by Hendrik Casimir over 50 years ago - could affect everything from micromachines to unified theories of nature.
Although the Casimir force seems completely counterintuitive, it is actually well understood. In the old days of classical mechanics the idea of a vacuum was simple. The vacuum was what remained if you emptied a container of all its particles and lowered the temperature down to absolute zero. The arrival of quantum mechanics, however, completely changed our notion of a vacuum. All fields – in particular electromagnetic fields – have fluctuations. In other words at any given moment their actual value varies around a constant, mean value. Even a perfect vacuum at absolute zero has fluctuating fields known as “vacuum fluctuations”, the mean energy of which corresponds to half the energy of a photon.
https://physicsworld.com/a/the-casimir-effect-a-force-from-nothing/
👍1
Discovery of quantum vibrations in 'microtubules' inside brain neurons supports controversial theory of consciousness
A review and update of a controversial 20-year-old theory of consciousness claims that consciousness derives from deeper level, finer scale activities inside brain neurons. The recent discovery of quantum vibrations in "microtubules" inside brain neurons corroborates this theory, according to review authors. They suggest that EEG rhythms (brain waves) also derive from deeper level microtubule vibrations, and that from a practical standpoint, treating brain microtubule vibrations could benefit a host of mental, neurological, and cognitive conditions.
https://www.sciencedaily.com/releases/2014/01/140116085105.htm
https://www.newscientist.com/article/2316408-quantum-experiments-add-weight-to-a-fringe-theory-of-consciousness/
A review and update of a controversial 20-year-old theory of consciousness claims that consciousness derives from deeper level, finer scale activities inside brain neurons. The recent discovery of quantum vibrations in "microtubules" inside brain neurons corroborates this theory, according to review authors. They suggest that EEG rhythms (brain waves) also derive from deeper level microtubule vibrations, and that from a practical standpoint, treating brain microtubule vibrations could benefit a host of mental, neurological, and cognitive conditions.
https://www.sciencedaily.com/releases/2014/01/140116085105.htm
https://www.newscientist.com/article/2316408-quantum-experiments-add-weight-to-a-fringe-theory-of-consciousness/
What are 'binaural beats' and do they affect our brain?
You might have seen online or heard about “binaural beats”, which have been described as “digital drugs”.
Listening to binaural beats has been claimed to help with sleep, stress, anxiety and cognition, and there’s much discussion online about whether or not they can cause a “high” similar to drugs.
But what actually are they?
And what’s the evidence for beneficial or mood-altering effects?
https://theconversation.com/what-are-binaural-beats-and-do-they-affect-our-brain-180235
You might have seen online or heard about “binaural beats”, which have been described as “digital drugs”.
Listening to binaural beats has been claimed to help with sleep, stress, anxiety and cognition, and there’s much discussion online about whether or not they can cause a “high” similar to drugs.
But what actually are they?
And what’s the evidence for beneficial or mood-altering effects?
https://theconversation.com/what-are-binaural-beats-and-do-they-affect-our-brain-180235
❤🔥1👍1
This media is not supported in your browser
VIEW IN TELEGRAM
Let's stop the noise sometimes and enjoy life
Excellent week 🌻
Excellent week 🌻
😁4❤🔥2
(“proletariats as a class; state of being a proletariat”), from latin proletarius (“belonging to the lowest class of citizens, whose only contribution to the state was their offspring; member of this class”)
In ancient Rome the proletariat consisted of the poor landless freemen. It included artisans and small tradesmen who had been gradually impoverished by the extension of slavery. The proletariat (literally meaning “producers of offspring”) was the lowest rank among Roman citizens; the first recognition of its status was traditionally ascribed to the Roman king Servius Tullius
In ancient Rome the proletariat consisted of the poor landless freemen. It included artisans and small tradesmen who had been gradually impoverished by the extension of slavery. The proletariat (literally meaning “producers of offspring”) was the lowest rank among Roman citizens; the first recognition of its status was traditionally ascribed to the Roman king Servius Tullius