Quotes About Nuclei

Like all numinous contents, they have a tendency to self-amplification, that is to say they form the nuclei for an aggregation of synonyms. These

GAS VERSUS PLASMA: In a gas (left), every electron is stuck to an atom. In a plasma (right), the electrons roam free, attracted by nuclei, but not attached to any single nucleus.

human red blood cells have no nuclei and thus possess no DNA of their own.

As the cosmos continues to cool—dropping below a hundred million degrees—protons fuse with protons as well as with neutrons, forming atomic nuclei and hatching a universe in which ninety percent of these nuclei are hydrogen and ten percent are helium, along with trace amounts of deuterium ("heavy" hydrogen), tritium (even heavier hydrogen), and lithium.

Our star, and most stars, are made mostly of hydrogen, which is the number one element in the universe: 90% of all atomic nuclei are hydrogen, about 8% are helium, and the remaining 2% comprise all the other elements in the periodic table. All

Within six months of starting my Ph.D. work in 1956, I had already obtained feeding tadpoles derived from transplanted nuclei of embryonic cells.

My first attempts to transplant nuclei in Xenopus were completely unsuccessful, because the Xenopus egg, unlike those of other amphibians, is surrounded by an extremely elastic membrane and jelly layer that make penetration by a micropipette impossible.

We carry stores of DNA in our nuclei that may have come in, at one time or another, from the fusion of ancestral cells and the linking of ancestral organisms in symbiosis. Our genomes are catalogues of instructions from all kinds of sources in nature, filed for all kinds of contingencies.

The strongest interactions are the nuclear interactions, which include the forces that bind nuclei together and the interaction between the nuclei and the z mesons. It also includes the interactions that give rise to the observed strange-particle production.

The entire substance of the spleen at an early period is almost entirely composed of nuclei and granular matter.

The diameters of nuclei range from 0.8 femtometers for hydrogen to 15 femtometers for uranium, where 1 femtometer equals 10-15 meter. The diameter of the hydrogen atom is about 0.11 nanometer, while that of the uranium atom is 0.35 nanometer, where 1 nanometer equals 10-9 meter. So, roughly speaking, the nucleus of the atom is a million times smaller than the atom itself. Matter is, indeed, mostly empty space.

Humans are mammals and their red blood cells are similar in that they do not have nuclei. Reptiles and birds have nucleated red blood cells, we do

El hipotálamo está compuesto por una serie de núcleos que llevan a cabo funciones diferentes y es una parte fundamental de lo que se considera como cerebro reptiliano, nombre que acuñó el doctor Paul MacLean.

The fine structure constant] ... defines how firmly atomic nuclei bind together and how all the atoms on Earth were made. Its value controls the power from the Sun and, more sensitively, how stars transmute hydrogen into all the atoms of the periodic table.

Omuta's sun would not flare and rupture, would never endanger life on the planet with waves of heat and radiation. Instead the sun would shrink and collapse into a small black sphere, with every erg of its fusing nuclei lost to the universe for ever.