For example, it takes the entire planet Earth to attract a feather to the floor, but we can counteract Earth’s gravity by lifting the feather with a finger. The action of our finger can counteract the...
For decades physicists have wondered why the four forces of nature appear to be so fragmented-why the cheetah looks so pitiful and broken in his cage. The fundamental reason why these four forces seem...
En realidad, para crear un universo como el nuestro puede necesitarse una cantidad neta absurdamente pequeña de materia, quizá baste con 30 gramos.
Embarrassingly enough, at present there is no theory explaining the properties of these high-temperature superconductors. In fact, a Nobel Prize is awaiting the enterprising physicist who can explain...
During the eleven-year sunspot cycle, for example, solar flares can send enormous quantities of deadly plasma racing toward Earth. In the past, this phenomenon has forced the astronauts on the space s...
But perhaps the newest and most exciting instrument in the neurologist’s tool kit is optogenetics, which was once considered science fiction. Like a magic wand, it allows you to activate certain pathw...
But if electrons can exist in parallel states hovering between existence and nonexistence, then why can’t the universe? After all, at one point the universe was smaller than an electron. Once we intro...
Astronomers suspect that the Oort Cloud could extend as far as three light-years from our solar system. That is more than halfway to the nearest stars, the Centauri triple star system, which is slight...
Another clue to the cause of aging might be telomerase, which helps to regulate our biological clock. Every time a cell divides, the tips of the chromosomes, called telomeres, get a bit shorter. Event...
And at the speed of light, you have taken the fastest possible journey to the stars. From your point of view, the trip is instantaneous.
An even more advanced form of uploading your mind into a computer was envisioned by computer scientist Hans Moravec. When I interviewed him, he claimed that his method of uploading the human mind coul...
Although consciousness is a patchwork of competing and often contradictory tendencies, the left brain ignores inconsistencies and papers over obvious gaps in order to give us a smooth sense of a singl...
A quantum theory of gravity that unites it with the other forces is the Holy Grail of physics.
The entire electromagnetic spectrum— from radar to TV, infrared light, visible light, ultraviolet light, X-rays, microwaves, and gamma rays— is nothing but Maxwell waves, which in turn are vibrating F...
ليست الانفعالات مشاعر على الإطلاق، لكنها مجموعة من آليات بقاء مزروعة في الجسم تطورت لتحولنا بعيدا عن الخطر، وتدفعنا إلى الأمام نحو أشياء ربما تكون مفيدة
To myself I seem to have been only like a boy playing on a seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth l...
Las leyes de la física admiten la posibilidad de abrir un agujero en el espacio concentrando suficiente energía en un punto, hasta que accedemos al espacio-tiempo espumoso y emergen agujeros de gusano...
There are many advantages to space solar energy. It is clean and without waste products. It can generate power twenty-four hours a day, rather than just during daylight hours. (These satellites are al...
There are an estimated 100 billion neurons residing inside the skull with an exponential amount of neural connections
Some scientists have gone further and have speculated that there is a God gene that predisposes the brain to be religious. Since most societies have created a religion of some sort, it seems plausible...