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A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot. The small width of the beam and the low power of typical laser pointers make the beam itself invisible in a ...
Equate is a brand used by Walmart for consumable pharmacy and health and beauty items, such as shaving cream, skin lotion, over-the-counter medications, and pregnancy tests. Before its takeover by Walmart, the formerly independent Equate brand sold consumer products at both Target and Walmart at lower prices than those of name brands.
Laser engraving. Laser marked electronic part. Laser engraving is the practice of using lasers to engrave an object. Laser marking, on the other hand, is a broader category of methods to leave marks on an object, which in some cases, also includes color change due to chemical/molecular alteration, charring, foaming, melting, ablation, and more. [1]
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Like many U.S. states, Walmart is the largest private employer in Pennsylvania. The state's second-largest employer is the University of Pennsylvania, an Ivy League private research university in Philadelphia. Pennsylvania is home to the oldest investor-owned utility company in the U.S.,
ITO is a mixed oxide of indium and tin with a melting point in the range 1526–1926 °C (1800–2200 K, 2800–3500 °F), depending on composition. The most commonly used material is an oxide of a composition of ca. In 4 Sn. The material is a n-type semiconductor with a large bandgap of around 4 eV. ITO is both transparent to visible light and ...
A pen is a handheld device used to apply ink to a surface, usually paper, for writing or drawing. Additional types of specialized pens are used in specific types of applications and environments such as in artwork, electronics, digital scanning and spaceflight, and computing.
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