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Approximately 1 ml per 3 liters (1 part in 3000 by volume, alternatively 1 ⁄ 4 teaspoonful per US gallon) of tetraacetylethylenediamine (TAED)-based laundry booster (concentrations of TAED vary). A source of ultraviolet light, [8] from sunlight or a UV lamp. [7] Xanthan gum or arrowroot can be added to the solution, creating an easier-to ...
[2]: 151 [34] [35] All modern UV–Vis spectrophotometer are built on the same basic principles as the DU spectrophotometer. [29] Diagram of Model DU optical system, Beckman manual, 1954 "Light from the tungsten lamp is focused by the condensing mirror and directed in a beam to the diagonal slit entrance mirror.
In physics, a wave packet is a short "burst" or "envelope" of wave action that travels as a unit. A wave packet can be analyzed into, or can be synthesized from, an infinite set of component sinusoidal waves of different wavenumbers, with phases and amplitudes such that they interfere constructively only over a small region of space, and destructively elsewhere.
2010 TK 7 was confirmed to be the first known Earth trojan in 2011. It is located in the L 4 Lagrangian point, which lies ahead of the Earth. [14] (614689) 2020 XL 5 was found to be another Earth trojan in 2021. It is also at L4. [15] [16] (687170) 2011 QF 99 was identified as the first Uranus trojan in 2013. It is located at the L 4 Lagrangian ...
Tempest 3000 is a tube shooter video game developed by Llamasoft for the Nuon. It was published by Hasbro Interactive in North America on December 13, 2000, and Europe in March 2001. It is a follow-up to Tempest 2000, an updated remake of Dave Theurer's arcade game Tempest (1981). The player controls a claw-shaped blaster, shooting at enemies ...
1998 uv 24 Wlodek Kofman (born 1945) directs the Laboratoire de Planétologie at the Université Joseph Fourier, Grenoble. He is principal investigator on the Rosetta mission's CONSERT experiment, which will use the transmission of radio waves through the nucleus of comet 46P/Wirtanen to build up a three-dimensional image.
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Google Earth is a web and computer program that renders a 3D representation of Earth based primarily on satellite imagery.The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles.