Huygens discovered the law of refraction to derive the focal distances of lenses. |
|
The trace causes meaning to shift with each shift in angle of refraction brought about by time or change of mood or understanding. |
|
Atomic beams can act like light waves and exhibit all of the classic wave effects, like interference and refraction. |
|
Negative refraction implies that a converging lens made from negative-index material should have a concave surface rather than a convex one. |
|
Capillaries were immersed in phthalic acid, which has an index of refraction that effectively eliminates optical refraction at the outer wall. |
|
He spent two years there, in particular studying the double refraction Bartholin had discovered in Iceland spar crystal. |
|
Sunlight traveling from space into the earth's atmosphere will undergo a large amount of refraction. |
|
For optical data, the measured 2V of a biaxial mineral can be checked against 2V calculated from the three principal indices of refraction. |
|
The refraction of the light also gives the moon a three-dimensional appearance. |
|
Thirty two ocean bottom seismometers will also be deployed to acquire seismic refraction data. |
|
A computer, programmed with the patient's refraction and corneal topography, controls the laser beam to precisely remove corneal tissue. |
|
Farsightedness, or hyperopia, is a common refraction problem causing blurred vision of close objects. |
|
The excimer laser ablation nomogram controls the relative distribution of the refraction correction into one or more zones. |
|
Later they showed that no material is needed for negative refraction in outer space. |
|
Set up a diode laser and a hemicylindrical acrylic prism to observe the phenomenon of total internal refraction. |
|
The Nuffield O level syllabus covered this in year 9, along with lots of optics, including reflection, refraction, diffraction and telescopes. |
|
According to authorities, normal astronomical phenomena such as a solar halo, or the refraction of water are usually reported during the day. |
|
In bi-directional transmission distribution functions it is also necessary to include refraction, which is described by Snell's law. |
|
Fermat proposed that light follows the path which takes the shortest time, enabling Snell's law of refraction to be deduced mathematically. |
|
It is an eye open to the reader as it translates its complex turns, blinks, and refraction onto the page. |
|
|
Because he believed that refraction inevitably produced coloured fringes, he advocated reflecting telescopes, and made one. |
|
He related the amount of refraction of light, or diffraction of light, to its wavelength. |
|
It was a beautifully worked out theory and explained most of the observed phenomena of light such as reflection, refraction, diffraction etc. |
|
It extends upwards from a depth of about 6 km, at which depth Precambrian crystalline basement is predicted from seismic refraction studies. |
|
Because of the effect of wave refraction, the plan shape of crenulated coasts can attain an equilibrium state. |
|
The main ocular determinants of refraction are the focusing power of the cornea and crystalline lens and the length of the eye. |
|
Our results should furthermore be useful to build up an analytic expression for the index of refraction of chromium forsterite. |
|
The first is a different refraction for the two polarization components at the lens surfaces, which causes a ray bifurcation at each lens. |
|
Unfortunately, radar beam refraction over the lakes remains poorly understood. |
|
This offset depends on the angle of incidence, the index of refraction, and is directly proportional to the thickness of the slab. |
|
The amount of refraction is dependent upon the angle of incidence and the wavelength of the light. |
|
Smith and Jones independently seek to confirm the newly formulated law of refraction. |
|
This contains some remarkable experiments, including some to determine the angles of refraction between various media. |
|
The optical path difference is directly proportional to the cosine of the angle of refraction through the coating. |
|
A mirage is caused by a small refraction of light near a hot surface. |
|
But the corona owes its origin to diffraction rather than refraction. |
|
He then gives 59 theorems on reflection and refraction of light. |
|
This volume contains a study of pressure and density, astronomical refraction, barometric pressure and the transmission of gravity based on this new philosophy of physics. |
|
He produced several other papers on light, the most important being in 1839 when he applied methods used by Green to study reflection and refraction of waves at a surface. |
|
What may be the most impressive adaptation of archerfish is their ability to learn to overcome the physics of the refraction of light passing from air into water. |
|
|
Lenses work by REFRACTION, not reflection, and the angle of refraction is based on the difference between the speed of light in the lens compared to the surrounding medium. |
|
It was done in silhouette behind a white screen, and the angles of refraction made it look as though Fafner really was a giant in relation to Siegfried. |
|
We found that the index of refraction used for the material comprising the core was very important in terms of the resulting angularly resolved scattering signatures. |
|
By shooting jets or bullets of water, and correcting for light refraction, archerfishes knock insects down to the water surface and quickly consume them. |
|
Amblyopia can also result from a major difference in the refraction between the two eyes, such as nearsightedness, farsightedness, or astigmatism. |
|
Prismatic refraction shows us the spectrum flashing out of a sort of nothing, which suggests a possible return into a single all-containing invisible source. |
|
He also studied spherical and parabolic mirrors, and understood how refraction by a lens will allow images to be focused and magnification to take place. |
|
Just under the water sheet, you can see dim grass photographs, two prints coloured to the temperature of glass that glint from one sky refraction to another. |
|
Another is the reflections off the water's surface, the refraction, and what I would call subsurface scattering of light, or the diffusion of light. |
|
Cycloplegic refraction measurements were taken before study commencement, every three months and at the end of the study. |
|
Wave refraction is the process by which wave crests realign themselves as a result of decreasing water depths. |
|
Such conditions may include ground relief, camera tilt and atmospheric refraction. |
|
Wave refraction can occur at the end of a spit, carrying sediment around the end to form a hook or recurved spit. |
|
The cornea has a flattened center where refraction is nearly equal in both water and air. |
|
On land, however, the sea turtles are nearsighted because the lenses in the eyes are spherical and adjusted to refraction underwater. |
|
Newton had committed himself to the doctrine that refraction without colour was impossible. |
|
He also studied other areas, ranging from agriculture, ballistics, water and freezing, light and refraction, to name only a few. |
|
In it Ptolemy writes about properties of light, including reflection, refraction, and colour. |
|
Caustic curves and surfaces are called catacaustic when formed by reflection, and diacaustic when formed by refraction. |
|
The subjective verification of refraction is a must even after autorefractometry. |
|
|
Long hours of VDT use may affect performance of a structure known as the ciliary body of the eye, which controls lens refraction. |
|
Brewster's photoelasticity law states that the index of refraction in a strained material becomes directional. |
|
The observed angle must be corrected for the effects of refraction and parallax, like any celestial sight. |
|
This latter analysis yielded an estimate of the imaginary part of the index of refraction. |
|
A challenge for any diving bird is the change in refraction between air and water. |
|
The Italian railroads require of their employes both eyes normal in regard to visual acuity, ocular refraction, perception of red and green, and visual field. |
|
Stenopaeic slit refraction is usually attempted when retinoscopy and more conventional subjective refractive techniques, i.e. JCC and FC, fail to provide satisfactory results. |
|
The relative peripheral refraction of the more myopic eye of anisomyopia was shifted hyperopically, as occurs in isomyopia with similar central subjective SE values. |
|
Refractive errors were determined objectively by hand held retinoscopy, refined by subjective refraction and finalized with dissociated red-green balance test. |
|
The geodesic equation then becomes changing speed due to an index of refraction, bending due to Huygens' principle and frame dragging due to advection. |
|
According to a company press release, it can measure for myopia, hyperopia, astigmatism, pupil size, pupil distance and anisocoria, in addition to refraction. |
|
When the laser rays enter the sample they suffer refraction, and the marginal rays are focused deeper than the paraxial rays, an effect known as spherical aberration. |
|
Ptolemy was impressed by the sophistication of Posidonius's methods, which included correcting for the refraction of light passing through denser air near the horizon. |
|
True tombolos are formed by wave refraction and diffraction. |
|
Bathymetric, side scan sonar, reflection and refraction surveys, and sub-bottom profiling will also be conducted to assist in developing an integrated site model. |
|
Measurements of axial length, anterior chamber depth, corneal topography, cycloplegic refraction and visual acuity are being performed at 6-month intervals. |
|