Listen up all you George Costanzas and Captain Picards. Laser-based hair rejuvenation is your answer. Specifically the iGrow, a stylish new bit of head-gear from Apira Science. It features 21 laser diodes and 30 LED lights.

The company says that this machine matches the output of most clinical hair lasers, and it should result in “thicker, fuller and healthier” hair in just a “few short months.” You buying this? The iGrow also includes a remote that has been programmed for both men and women, and it has a built-in set of headphones that you can use with your own iPod or MP3 player. Damn. This thing is packed with features. It will cost you $695.

There are all sorts of reasons you might want to send someone a message. You may want to tell that special someone just how much you care; you may want to announce the birth of a child or some other special occasion. You could send a card or you could send the message into space on a laser beam (insert Dr. Evil laugh here).

A company called Sentforever.com is offering to send messages into space for free in celebration of the 40th anniversary of the moon landings. The messages are transmitted with a laser beam at 670 million miles an hour into deep space.

We’ve seen some pretty cool lasers come across our desks in the past so it’s always refreshing to see a unique twist like what we have with the Photonic Disrupter. The folks at Wicked Lasers have taken an already powerful 100mW laser and modded it into non-lethal, “Threat Assessment Laser Illuminator”, (TALI for short) weapon.

The main feature that makes the Photonic Disrupter different from other 100mW lasers is its adjustable lens, allowing you to create a broad or very focused non-lethal beam of green light. The intent of the laser is for military and law enforcement use in dark or low-light situations, allowing the wielder of the light to temporarily blind and overwhelm the senses of the other person.

The guys over at SKYlaser gave us the opportunity recently to check out there version of a 150mW green laser pointer with a unique adjustable power feature. We’ve reviewed a number of types of lasers and laser pointers here on the ‘Brick but this is the first we’ve gotten our hands on one that has this type of adjustable power.

The nice thing about getting a powerful laser of this caliber is just that; it’s powerful. This laser has enough oomph to put a green dot on something from pretty much as far away as you can see, and that’s during the day. At night it makes a seemingly unending saber-like beam of green laser light visible for miles.

We’ve gotten our hands on some pretty cool and powerful lasers in the past, but never one of quite this magnitude. If you were wondering if there really is a difference between laser pointers, or if there is a difference between a $300 laser and a $1700 laser; well we’re here to tell you that there is.

From the time we opened the box of the Spyder II GX we could tell that this one meant business. The Spyder II is another green laser with a beam that can be seen from miles and miles away, literally. It’s powered by a special single LI-ION 18650 rechargeable battery (the device comes with 2 of them and a charger) and is housed in a military grade, water resistant case. It operates by a rubber toggle switch in the back that keeps it on until you press it again, unlike the Elite Series which requires you to hold it to keep the laser on.

Powerful laser pointers are something that many people are often curious about, however not too often does someone get a chance to handle one. The folks over at WarnLaser recently gave us at the ‘Brick a chance to try out one of their lasers to see what we thought. This is not the first time we’ve had our hands on a laser of this caliber and through this we’ve learned that all lasers are not created equal.

The sample we received is a 120mW Tiger Series GX, running on a couple of standard AAA batteries in a frame about the size of a large pen. In fact, this laser has pen-like clip and can pretty easily fit in a shirt pocket, but might be a little bit heavier than most of the items in your pocket protector at 55 grams. The Tiger Series is a nice balance between power and portability in the array of lasers from WarnLaser. It’s about in the middle of the road – you can get weaker lasers and you can get them much more powerful.

You want to be a Guitar Hero, but you don’t know any songs. Just attach this Maestro device onto your guitar, load a music file of the song you want to learn and it will point out the frets you need to hit, using lasers. As any rock god will tell you, guitars and lasers are an awesome combination.

But just be warned, if you suck, no amount of lasers are going to stop you from sucking. You still have to strum and finger the frets. But it does seem like a great way for guitar players to learn songs quickly. If this concept ever gets made, it would probably do really well.

Wicked Lasers recently gave us the opportunity to check out one of their popular laser pointers, which gave us quite a surprise. Actually, before we received it we called it a laser pointer but not any more. Wicked Lasers assured us that it is not a laser pointer – it truly is a wicked laser, and we can’t disagree.

The sample product we received was from the Elite Series of green lasers, specifically the Elite 125. This laser appears to be around the middle of the road for the different lasers offered by Wicked Lasers. The average output power according to the company runs from 125mW to 149mW. They also have lasers in their catalog with as little as 50mW and as much as 300mW. The Elite 125 for us had plenty of power and made it very clear why this is not a laser pointer for regular presentations. For starters it would be difficult to see anything on a presentation screen because the light from the laser is way too bright, even from across a large room. Also, the crowd would be so distracted by what you’re using to point with they’d never pay attention to anything else you’re trying to show them.

OK, anytime I hear anything about laser beams anymore I can’t help but think of evil geniuses.

Mitsubishi has manufactured a prototype of a television based on the technology of two other companies that uses a type of laser beam projection instead of plasma or liquid crystal displays (LCD). This is still in development but they think something might be ready for production towards the end of 2007.

The Laser TV is intended to be a replacement, or at the least direct competition to the reigning plasma televisions for brightness and picture clarity. Makers boast that the new laser projection television will have a better quality with more detail, consume less power and cost significantly less than plasma or LCD TV’s.

If the new laser TV’s do all that then I guess you really can’t go wrong with that. Is it really to much to ask to …