piątek, 24 listopada 2017
zamknij [x]
do:

Fizyka (594)

234... z 30

Zdjęcia

! EN_01163426_0001 SCI
Electromagnetic particle shower. Particle tracks (moving from bottom to top) showing multiple electron-positron pairs created from the energy of a high-energy gamma ray photon produced by a neutrino collision. The positron is the anti-particle of the electron, and this process is called ^Ipair-creation^i. Electrons and positrons are charged particles and form these paired spirals as they curve away from each other in a magnetic field. As they do so, they radiate photons, which can in turn produce new electron-positron pairs. This shower of particle creation continues until the energy of the original photon is used up. The region shown here is about 2 metres tall.
! EN_01163426_0013 SCI
^BElectromagnetic spectrum.^b Computer artwork of the electromagnetic (EM) spectrum (across centre) and the component colours of visible light (across bottom). The changing wavelength of EM radiation through the spectrum is shown by the trace across top. At the high wavelength end of the spectrum are (from left to right) gamma rays, X-rays and ultraviolet light. In the centre of the EM spectrum are wavelengths that the human eye can see, known as visible light. Visible light comprises light of different wavelengths and energies, and hence colours. At the low wavelength end of the EM spectrum (centre to right) are infra red radiation, microwaves and radio waves.
! EN_01151355_0473 SCI
Stanene sheet. Computer artwork showing the molecular structure of a sheet of stanene. Stanene is the name given by researchers to 2-dimensional sheets of tin (silver-coloured) that are only 1-atom thick, in a manner similar to graphene. Stanene is a theoretical topological insulator that may display superconductivity at its edges above room temperature. The addition of fluorine (green) atoms to the tin lattice could extend the critical temperature up to 100 degrees Celsius.
! EN_01151355_1883 SCI
Superstring theory is an attempt to explain all of the particles and fundamental forces of nature in one theory by modelling them as vibrations of tiny supersymmetric strings. Superstring theory is a shorthand for supersymmetric string theory because unlike bosonic string theory, it is the version of string theory that incorporates fermions and supersymmetry. Since the second superstring revolution the five superstring theories are regarded as different limits of a single theory tentatively called M-theory, or simply string theory.
EN_00962647_1159 VAL
energy formation
SPECIAL RATES FOR EDITORIAL AND BOOKS RF RATES FOR OTHER USE
EN_00962647_1989 VAL
lasers and bubbles
SPECIAL RATES FOR EDITORIAL AND BOOKS RF RATES FOR OTHER USE
EN_00962647_3981 VAL
Atomic symbol
SPECIAL RATES FOR EDITORIAL AND BOOKS RF RATES FOR OTHER USE
EN_00962647_4611 VAL
Atomic symbol
SPECIAL RATES FOR EDITORIAL AND BOOKS RF RATES FOR OTHER USE
EN_00962647_6050 VAL
Glossy Red Atomic-Nuclear Symbol
SPECIAL RATES FOR EDITORIAL AND BOOKS RF RATES FOR OTHER USE
EN_00962661_3499 VAL
Newtons Cradle
SPECIAL RATES FOR EDITORIAL AND BOOKS RF RATES FOR OTHER USE
EN_00957730_2098 PHO
Computer illustration of electrical discharge.
EN_90286235_0672 PHO
Mandelbrot set. Fractal geometry is used to derive complex shapes as are often found in nature. Complex patterns are produced by a series of repeated mathematical operations or mappings. Generated on a computer screen, fractals are used to create models for real-world non-linear phenomena. Center coordinates: Real: -0.1673077, Imaginary: 1.0410714, Side Length: 0.001.
EN_90286235_0428 PHO
Digital illustration of the atomic structure. The nucleus is made up of protons and neutrons, and the orbitals are made up of electrons.
EN_90286235_0142 PHO
Fractal landscape. Mandelbrot set. Fractal geometry is used to derive complex shapes as are often found in nature. Complex patterns are produced by a series of repeated mathematical operations or mappings. Generated on a computer screen, fractals are used to create models for real-world non-linear phenomena.
EN_90286235_0141 PHO
Fractal landscape. Mandelbrot set. Fractal geometry is used to derive complex shapes as are often found in nature. Complex patterns are produced by a series of repeated mathematical operations or mappings. Generated on a computer screen, fractals are used to create models for real-world non-linear phenomena.
EN_90286235_0131 PHO
Fractal landscape. Mandelbrot set. Fractal geometry is used to derive complex shapes as are often found in nature. Complex patterns are produced by a series of repeated mathematical operations or mappings. Generated on a computer screen, fractals are used to create models for real-world non-linear phenomena.
EN_90286235_0080 PHO
Computer-generated model of a neon atom. The nucleus, at center, is too small to be seen at this scale and is represented by the flash of light. Surrounding the nucleus are the atom's electron orbitals: 1s (small sphere), 2s (large sphere) and 2p (lobed). The 2p orbitals are attenuated for clarity.
EN_90286235_0079 PHO
Computer-generated model of a neon atom. The nucleus, at center, is too small to be seen at this scale and is represented by the flash of light. Surrounding the nucleus are the atom's electron orbitals: 1s (small sphere), 2s (large sphere) and 2p (lobed). The 2p orbitals are attenuated for clarity.
EN_90286235_0072 PHO
Computer-generated model of a neon atom. The nucleus, at center, is too small to be seen at this scale and is represented by the flash of light. Surrounding the nucleus are the atom's electron orbitals: 1s (small sphere), 2s (large sphere) and 2p (lobed). The 2p orbitals are attenuated for clarity.
EN_90286236_0233 PHO
Computer-generated Mandelbrot fractal. The Mandelbrot set is a set of points in the complex plane, the boundary of which forms a fractal.

góra

234... z 30