Ads
related to: laser level for grade worksheets that are free and printable
Search results
Results from the WOW.Com Content Network
The concept of a laser level has been around since at least the early 1970s, [2] the original spinning-mirror design laser plane and line level was patented by the late 1980s, [3] and the compact lens-based laser line level (as produced by many tool manufacturers today) was patented in the late 1990s. It was invented by Oscar Soliz in the late ...
The Y level or wye level is the oldest and bulkiest of the older style optical instruments. A low-powered telescope is placed in a pair of clamp mounts, and the instrument then leveled using a spirit level, which is mounted parallel to the main telescope. The term dumpy level (also builder's level) endures despite the evolution in design. They ...
A line level is a level designed to hang on a builder's string line. The body of the level incorporates small hooks to allow it to attach and hang from the string line. The body is lightweight, so as not to weigh down the string line, it is also small in size as the string line in effect becomes the body; when the level is hung in the center of ...
Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. 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.
Green Bay Packers wide receiver Christian Watson is off the field on "Monday Night Football." Here's why.
While Donald Trump is returning to the White House with sweeping immunity from criminal prosecution, that won’t necessarily keep him out of the courtroom or free from testimony under oath.
What probably shouldn't be a surprise is that Warner still leads the 49ers with 84 tackles (50 solo) despite the fracture in his ankle. He's been San Francisco's leading tackler for each of the ...
Sub-surface laser engraving is the process of engraving an image in a transparent solid material by focusing a laser below the surface to create small fractures. Such engraved materials are of high-grade optical quality (suitable for lenses, with low dispersion) to minimize distortion of the beam. BK7 glass is a common material for this ...
Ads
related to: laser level for grade worksheets that are free and printable