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Well, a concept is all very well and good, but if the parts are unaffordable or unavailable it isn’t going to be much good. It took me a little while to find some good places to buy from, and here’s what I found out.

This is probably the coolest thing I’ve ever made. It’s quite a step up from the Five Dollar Laser Show I posted a bit back. The only logical step after building that was to drastically increase the power and number of beams.

Laser safety is serious business.

No no, not in the internet meme sense, but blind you forever with no way ever to fix it serious.
I know I’m about to rant, but I’ll do it anyways. This applies double for any girl/boy geniuses working with lasers. I know that you’re going to play with lasers regardless of [...]

When I first built Dr. Altman’s Amazing Laser Music Can, I was captivated. This is true science! Gorgeous laser light that was unimaginable before the development of quantum physics. Patterns generated by varying partial derivatives of the surface of a rigid plate on a vibrating membrane – and you thought calculus was boring!
I loved it, [...]

I’ll be honest – I didn’t take anywhere near enough pictures of this. After the first hour I quickly descended into a geek trance and emerged a few hours later, slightly disheveled and holding a working working laser show but possessing only 13 pictures, many of which were terrible and irrelevant. So I apologize, and [...]

I was searching through YouTube and came across Dr. Altman’s “Amazing Laser Music Can” which I thought was a very impressive effect for very little money. I had a spare Sunday afternoon, and decided to make one for myself.

All that’s left to do is find out if your current bedframe is appropriate for a memory foam mattress! This is a very underemphasized step – if you have an inappropriate bedframe, your comfort and the life of your memory foam mattress can be significantly reduced.

The base foam is a critical part of your memory foam mattress. No matter how luxurious the memory foam top layer, cutting corners on the base layer will produce an unsupportive and uncomfortable bed.

Now that you know what memory foam is, the differences between memory foams, and some possible issues, it’s time to select a memory foam top layer for the bed.

While personally I find memory foam to be an amazing sleeping surface, there are some issues that
you should be aware of.