Was homework made as a punishment?
It is often thought that Roberto Nevilis of Venice, Italy invented homework in 1905 as a punishment for his students. Instead, it is believed that Horace Mann, an American 19th-century politician and educational reformer, invented the modern concept of homework and made it an educational essential in schools.
Who was the person who invented school?
Horace Mann
Why Is Time an Illusion?
According to theoretical physicist Carlo Rovelli, time is an illusion: our naive perception of its flow doesn’t correspond to physical reality. He posits that reality is just a complex network of events onto which we project sequences of past, present and future.
Is the universe 3D or 4d?
The universe is three-dimensional. The universe is four-dimensional—three for space, one for time. The universe has nine, or ten or eleven dimensions. Matter curves spacetime.
How many dimensions can we perceive?
two dimensions
Why is string theory wrong?
The fact that we have discovered exactly 0 supersymmetric particles, even at LHC energies, is an enormous disappointment for string theory. For another, string theory, even in “only” 10 dimensions, doesn’t give you General Relativity as your theory of gravity, but rather a 10-dimensional Brans-Dicke theory of gravity.
Can string theory ever be proven?
Many physicists consider string theory our best hope for combining quantum physics and gravity into a unified theory of everything. Yet a contrary opinion is that the concept is practically pseudoscience, because it seems to be nearly impossible to test through experiments.
Is physics a dead end?
Physics is dead, a Nobel-prize winner had asserted, because most of the relatively easy problems have been solved, and significant further progress now often demands extremely complex and expensive apparatus — the Large Hadron Collider at CERN being the most recent example.
Are Tachyons real?
Tachyons have never been found in experiments as real particles traveling through the vacuum, but we predict theoretically that tachyon-like objects exist as faster-than-light ‘quasiparticles’ moving through laser-like media.
Who found Tachyon?
Gerald Feinberg
Which is faster than light?
Tachyons are hypothetical particles that travel faster than light. According to Einstein’s special theory of relativity – and according to experiment so far – in our ‘real’ world, particles can never travel faster than light. Taken together, all these virtual particles make up the quantum vacuum.)
What’s the speed of dark?
Darkness travels at the speed of light. More accurately, darkness does not exist by itself as a unique physical entity, but is simply the absence of light.
Can a black hole die?
It’s not much since a typical black hole will emit only one particle every year, but it’s not nothing. A good size black hole — say, a few times more massive than the sun — will take about 10^100 years to eventually evaporate through this process, known as Hawking Radiation.
Will a black hole hit Earth?
Since this black hole already weighs a few million times the mass of the Sun, there will only be small increases in its mass if it swallows a few more Sun-like stars. There is no danger of the Earth (located 26,000 light years away from the Milky Way’s black hole) being pulled in.
Does Space fall into a black hole?
Outside the horizon, space is falling into the black hole at less than the speed of light (or the speed of fishes), and photon-fishes swimming upstream can make way against the flow. However, in general relativity, space itself can do whatever it likes.