Help


[permalink] [id link]
+
Page "Numerical aperture" ¶ 30
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

When and light
When the light went their way, they went on across the street.
When he was inducted into the Army at Fort Knox, Ky., Hansen's weight had dropped to 180 -- `` too light for me to be at my best '' he said.
When quoted unqualified, it usually refers to some appropriate average across the spectrum of visible light.
When the light from a heated material was passed through a prism, it produced a multi-colored spectrum.
When she made it, the results, starring Margaret Rutherford, were popular and successful light comedies, but were disappointing to Christie herself ; nevertheless, Agatha Christie dedicated the novel The Mirror Crack'd from Side to Side to Rutherford.
When the telescope is at position E it must be oriented toward spot S ′ so that the star light enters the telescope at spot S ′.
When the particles are in great motion, they produce a Doppler shift for measuring wind speed in the laser light, which is used to calculate the speed of the particles, and therefore the air around the anemometer.
When the wind blows horizontally, it presses on and moves the ball ; because ping-pong balls are very lightweight, they move easily in light winds.
When Congress overrode his veto, the project had its green light and ground was first broken in 1991.
When light is sent through the sample, it is backscattered by the particles / droplets.
When exposed to sunlight, artificial light, or infrared radiation ( even the heat of a hand nearby can be enough ), the vanes turn with no apparent motive power, the dark sides retreating from the radiation source and the light sides advancing.
When the radiometer is heated in the absence of a light source, it turns in the forward direction ( i. e. black sides trailing ).
When looking at a cross section of a beam of light, the length over which the phase is correlated is called the transverse coherence length.
When open, doors admit people, animals, ventilation, and light.
) When Thomas Young first demonstrated this phenomenon, it indicated that light consists of waves, as the distribution of brightness can be explained by the alternately additive and subtractive interference of wavefronts.
When writing solo passages for the bass in orchestral or chamber music, composers typically ensure the orchestration is light so it doesn't obscure the bass.
When an electron in an excited molecule or atom descends to a lower energy level, it emits a photon of light equal to the energy difference.
When Loki, god of mischief and strife, murdered Baldr, god of beauty and light, he was punished by being bound in a cave with a poisonous serpent placed above his head dripping venom.
When light is sent through the sample, it is backscattered by the droplets.
When the frequency of the strobe equals the frequency of the rotating or vibrating object, the object completes one cycle of oscillation and returns to its original position between the flashes of light, so when illuminated by the strobe the object appears stationary.
When moving from a denser medium into a less dense one ( i. e., n < sub > 1 </ sub > > n < sub > 2 </ sub >), above an incidence angle known as the critical angle, all light is reflected and R < sub > s </ sub > = R < sub > p </ sub > = 1.
When light makes multiple reflections between two or more parallel surfaces, the multiple beams of light generally interfere with one another, resulting in net transmission and reflection amplitudes that depend on the light's wavelength.
When this material condenses in the rain, it forms dust and light sandy materials that resembles ground pumice.

When and ray
When a ray of light hits the boundary between two transparent materials, it is divided into a reflected and a refracted ray.
It is also possible to produce polarised light rays using a combination of reflection and refraction: When a refracted ray and the reflected ray form a right angle, the reflected ray has the property of " plane polarization ".
When a ray hits a surface, it could generate up to three new types of rays: reflection, refraction, and shadow.
When a dot is drawn on a cathode ray tube, the area of the dot becomes slightly positively charged and the area immediately around it becomes slightly negatively charged, creating a charge well.
To see this, the three corresponding normal vectors of the corner's perpendicular sides can be considered to form a basis ( a rectangular coordinate system ) ( x, y, z ) in which to represent the direction of an arbitrary incoming ray, b, c. When the ray reflects from the first side, say x, the ray's x component, a, is reversed to-a while the y and z components are unchanged, resulting in a direction of b, c. Similarly, when reflected from side y and finally from side z, the b and c components are reversed.
When a product fails for no obvious reason, SEM and Energy-dispersive X &# 8209 ; ray spectroscopy ( EDX ) performed in the microscope can reveal the presence of aggressive chemicals that have left traces on the fracture or adjacent surfaces.
When Bizarro falls in love with reporter Lois Lane, she uses the duplicating ray on herself to create a " Bizarro Lois ", who is instantly attracted to Bizarro.
When some probe ( such as a light ray or an observer ) approaches a black hole event horizon, its Schwarzschild time coordinate grows infinite.
When viewed from orbit, Giordano Bruno is at the center of a symmetrical ray system of ejecta that has a higher albedo than the surrounding surface.
When a low-energy electron annihilates a low-energy positron ( antielectron ), they can only produce three or four gamma ray photons, since the electron and positron do not carry enough mass-energy to produce heavier particles and conservation of energy and linear momentum allow the creation of only one photon.
When Swinton gave his speech others had already been experimenting with the use of cathode ray tubes as a receiver, but the use of the technology as a transmitter was unheard of.
When she peeks outside, a ray of light called " dawn " escapes and Amaterasu is dazzled by the beautiful goddess that she sees, this being her own reflection in the mirror.
When threatened the cownose ray can use the barb at the base of its tail to defend itself from the threat.
A famous quote from Järegård is " When I get up at night to grab a sandwich, it only takes a ray of light from the fridge lamp for me to start acting.
It is also possible to produce polarized light rays using a combination of reflection and refraction: When a refracted ray and the reflected ray form a right angle, the reflected ray has the property of " plane polarization ".
When General Ross suffered a nervous breakdown, Talbot returned to the military as a Colonel and it was later revealed that he had fired a ray gun that sent the Hulk to the Sub-Atomic universe after the Hulk stormed into Gamma Base looking for Jarella, now deceased, who was cryogenically frozen.
When a charged particle from a cosmic ray travels through the box, it ionises the gas between the plates.
When this trigger senses that a cosmic ray has just passed, it fires a fast switch to connect the high voltage to the plates.

0.208 seconds.