Unique Content Article: Laser Pointers: How They Are Used

<h2 class = 'uawtitle'> Laser Pointers: How They Are Used</h2><br />
<div style='font-style:italic;' class='uawbyline'>by Klaiton Talliey</div><br /><br />
<div class='uawarticle'> Laser pointers are interesting tools that are very useful in various ways. Because of its many uses laser pointers for sale may cost from around one dollar to around a hundred dollars. Because of its availability to the public, the simplicity of its usage and the creativity of users, laser pointers have evolved from being a mere pointing device in seminars throughout the years to becoming a sophisticated tool in various fields.<br />
<br />
As a complementary tool for lecturers<br />
<br />
Laser pointers gained popularity as an instructor's device of choice when pointing something out in a screen. With the popularity of projected presentations such as the Microsoft PowerPoint software, laser pointers have become more frequently used. Laser pointers are common add-ons that come with purchasing multimedia projectors The kind of laser pointer used for lectures are the ones which emit red laser that has a 630 nm wavelength.<br />
<br />
For pointing at heavenly bodies<br />
<br />
Another use of laser pointers is for astronomy enthusiasts that want to point at the stars at night. These lasers emit a 532 nm wavelength light making them look green. What makes green lasers more appropriate for this purpose is that they are visible in mid air, unlike red lasers. Their high battery requirement allows these types of lasers to be seen for up two kilometers in the dark. All its special features make green laser pointers for sale are more expensive; each costing up to $100.<br />
<br />
Sight for firearms<br />
<br />
One of the cool uses of your everyday laser pointer is as a sight for pistols and rifles. We are all familiar with crime movies and TV shows showing SWAT team members and bad guys having lasers in their guns. Lasers guide the shooter by pointing at the direction that the bullets will travel. This will give gun wielding professionals using laser pointers an advantage especially in emergencies that require them to act fast. Aside from pointing the direction of the bullet, lasers also give a blinding effect to the target making shooting back more difficult.<br />
<br />
In messy crime scenes where there may be multiple shooters were involved or where many bullets were fired, lasers are used to know the trajectory of each bullet which can be useful in determining the shooter and his location. This gives the investigator an idea of who was shooting and where each bullet went. <br />
<br />
For fooling around<br />
<br />
Though lasers may have many uses, they are not allowed in some sports stadiums and arenas as they can be used to distract and blind players during game changing moments. They are also banned from cinemas to avoid interfering with the projected film. <br />
<br />
</div><br />
<div class='uawresource'><br />
<div style='font-style:italic;' class='uawabout'><br />
About the Author:<br />
</div><br />
<div class='uawlinks'>For more information on laser pointers please <a href="http://www.slideshare.net/deankemp1231/doc1-14026190">check this out</a>.</div><br />
</div><br />
<hr><br />
<p>You are receiving this because you signed up for it on 2012-03-18 from IP 108.66.210.38</p><br />
<p>To fine-tune your selection of which articles to receive, just <a href='http://www.uniquearticlewizard.com/bloggers/'>login here</a><br>using your username: </p><br />
<p>To unsubscribe please use the following link:<br><br />
<a href='http://www.uniquearticlewizard.com/unsubscribe.php?mail=kelvinrogersholdings.empowered@blogger.com&code={confirmcode}'>Unsubscribe</a><br />
<hr><br />
<br />
---------------------------------<br />
New Unique Article!<br />
<br />
Title: Laser Pointers: How They Are Used<br />
Author: Klaiton Talliey<br />
Email: greatmarketingpackages@gmail.com<br />
Keywords: Personal Tech,Electronics,Shopping,Product Reviews<br />
Word Count: 434<br />
Category: Marketing<br />
---------------------------------