• DIY

    Making Music with Lasers

    By Posted on 5.7.2009 9 Comments

    Playing the harp isn’t the most high-tech pastime—unless, like Stephen Hobley, you use lasers in place of the strings. Though not the first home-built laser harp, Hobley’s creation is unquestionably the coolest. Played by disrupting the laser beams with his hands, it can produce just about any sound. Better yet, it’s also a fully functioning controller for a version of Guitar Hero.

    3.17.2009 at 11:04pm - Comment by Growler30

    This guy really sucks at that game, I used to have a friend that was really into this game. I would go over and we would play 2 player, he used the guitar and I always got stuck with just the controller. I got pretty good at it though and was able to play this song, Freebird, on hard mode for perfect just once. Always better than that though, but I see where this would be a big seller for that crowd. Hell my friend would buy it, maybe I would get some guitar time... Not really, just not my thing really anymore. Is cool idea, would not call it the harp though, that will discourage his target crowd. Needs a cooler name.

  • Technology

    Bomber Tank Becomes Wading Pool

    By Posted on 3.16.2009 7 Comments

    July 1947: "Warplane wing tanks, which can be picked up as war surplus for about $5, make excellent back-yard wading pools. The pool shown was cut from a wing tank made for a B-17 bomber. It was laminated neoprene and cloth and required a couple of hours of cutting time, but it was so stiff that no frame was needed for rigidity." Browse the full PopSci archives on the Web.

    3.16.2009 at 03:03pm - Comment by Growler30

    I think this was taken back in 1947 when money was scarce, and I do not believe you could just go down to your local WalMart and buy a $20 wading pool. Also if you read the statement about the pool it was "laminated neoprene and cloth" which means it not only was had to be cleaned up very good in order for the laminate to stick, but was laminated with Neoprene which is like rubber. This sealed any remaining containments in, and kept the child safe. Also, since you can go out and buy a $20 wading pool in our time, you would never have to worry about subjection you child to this in our time.

  • Science

    The Greenest Green Fuel

    By Posted on 1.22.2008 4 Comments

    Take a peak inside the Solix labs to see their oil-from-algae operation up close in our photo gallery and video â€Here it is!†Jim Sears says with a tour guide´s come-see enthusiasm.

    3.13.2009 at 03:36pm - Comment by Growler30

    LGem, I think you are wrong, and just do not want them to find the answer here. If it were not possiable the testing process would not have come this far. And please do not try and say I do not know what I am talking about as I am former Sr. Site Manager for a biodiesel refinery, a 10 million gallon a year facility, that made the highest quality Biodiesel produced in North America. Weekly ASTM testing of our fuel proved that. And just because the technology is not quite there, does not mean it will not be someday soon. If they find a way to do this, it will very much negativly impact you company, and that is what you are afraid of. If the cost and balance of this goes down that will force the cost of your product to drop reducing your profit. I know your rebuttle will be, if the production cost drops you will make more money, but I do not believe that you want to lower the cost of your product or deal with the competition you will have if this happens.

  • The Environment

    Dirty Biodeisel

    By Posted on 3.11.2008 5 Comments

    Were still in the honeymoon period with new fuel technologies like biodiesel. Theyre clean. Renewable. No more oil-covered seabirds in the news! I can drink out of the tailpipe of my hydrogen fuelcell car! Weve been so taken with their promise that weve neglected to think much about their inevitable downside: these fuels are manufactured, and unfettered manufacturing can be dirty.

    3.13.2009 at 03:04pm - Comment by Growler30

    I used to work for a biodiesel plant in Nevada, I was the Sr. Site Manager, and was laid of due to rising production costs. Since the plant I worked at was forced to shut down due to this, and the new facility being built seems to be put on hold halfway through the build. The cost of Crude Soybean oil, a major item needed to may ASTM standard meeting biodiesel, tripled the first of 2008. When you consume 2 rail cars a week at, lets say $60K each, and then the cost triples now its $180k apiece how do you ever expect this industry to grow. Sure we used other feedstocks, we were one of the few multi-feedstock facilities in the U.S. (Which means we used anything from used cooking oil, sunflower seed oil, and even pig fat. We used different amounts of soy oil depending on the free fatty acid content of these feedstocks to keep production possible) Do to the increase in demand the cost shot up, so plants all over the U.S. are going under. The government needs to regulate this in some way if they ever want this market to succeed. I also do not understand why plants would dump grease illegally when this is not needed, something the company I worked for never did. "135,000 gallons of GREASE is going to choke a river, no matter if it’s biodegradable." Almost all by products of production are reusable, the main one being Glycerin. This gives the good plants a really bad rap, and also the think the way it was worded, the wrong name completely, was messed up in the article. Pure used grease, unrefined, is usually feed to pigs or some other animal, hence the name FEEDSTOCK. This always has some type of value for this and would never be dumped in a river, I think they had the name wrong, and possibly confused it with some other by product from Biodiesel production. Popular Science please look into this and correct it, I can tell you from experience this is very inaccurate and wrong.



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