Real world Lightsabers coming soon!

A few years ago, the Science Channel aired an episode of SciFi Science, “How to Build a Lightsaber” hosted by theoretical physicist Dr. Michio Kaku. He explained some theories that might be used and developed a rough design that should be “workable in our lifetimes.” Of course almost all of his episodes end up with that qualification. Last month it looks like there was a breakthrough in the hardest part of making a lightsaber work, getting the blade to stop at a certain point.

Although the most prominent uses for controlling the depth of laser cutting are surgical and clinical, Fraser said the team is “very excited about the potential industrial applications,” especially since compared to clinics it’s easier to get new technology into industries.

Unfortunately, the goal is to make the lasers useful surgery, not chopping off alien arms at cantinas.

Via  National Post

If you’d like to watch the episode I’m referring to, use this Google Search: How to build a light saber on Youtbue

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Isaac Asimov introduces the Radio Shack TRS-80 pocket computerIsaac Asimov introduces the Radio Shack TRS-80 pocket computer

I ran across this ad recently for an amazing new product, promoted by my own favorite science fiction author, Isaac Asimov.

Radio Shack’s TRS-80 Pocket Computer turned my dreams into a reality. Now I can take the power of a true computer with me wherever I go.
— Isaac Asimov

The marketing guys chime in a few paragraphs later.

And it can also function just like a calculator — something a desktop computer can’t do.
— Radio Shack

Wait, what!? With a standard calculator included in just about every phone that I can think of, it is hard to imagine a desktop computer ever existing without that ability. Crazy, right? Now that I think of it, it wasn’t too far in the distant past that desktop computers couldn’t be used for voice communications, something a simple phone could do. So what does $169.95 actually get you?

From Dave Dunfield’s old computer page:

The machine was actually a Radio Shack branded version of the Sharp PC-1211, which features:

  • Sharp SC43177/SC43178 4-bit CPU running at 256khz
  • 1×24 character LCD display
  • 57 key “Qwerty” keyboard
  • 1.5k of RAM for user program storage
  • Pizoelectric buzzer

Be sure to check out the full breakdown at Dave’s TRS-80 Pocket Computer page

As a point of comparison, here are a few highlights of Motorola’s Droid 2 tech specs:

  • 1 GHz processor
  • 480×854 Pixel display (Characters displayed depends on the font)
  • QWERTY keyboard
  • 8GB flash (expandable to 32GB)
  • Support for stereo bluetooth (not sure if actual speaker is stereo or not)
  • 100’s of other features like camera, video capture, streaming video, and get this includes the ability to make phone calls. Sadly though, it can’t make you breakfast… yet.

Let me whip out my calculator on my i7 Desktop Computer! The Droid 2 has a 3,906.25 times faster processor (just based on clock rate, not actual computational power) and has 5,592,405.33 times more storage. That seems crazy right? The TRS-80 pocket computer came out in 1980, about 20 years ago. I wonder how people will feel about our state of the art smartphones in 2020? That is assuming we haven’t been taken over by robots gone wild, destroyed ourselves with nukes, or succumbed to a raging nano-plague. But that is all just science fiction.

Isaac Asimov promotes Radio Shack's TRS-80 Pocket Computer

Isaac Asimov promotes Radio Shack's TRS-80 Pocket Computer

The Age of Spiritual Machines by Ray KurzweilThe Age of Spiritual Machines by Ray Kurzweil

The Age of Spiritual Machines Book Cover
A few months ago a co-worker of mine suggested that I read The Age of Spiritual Machines: When Computers Exceed Human Intelligence by Ray Kurzweil. We had been talking about AI and he mentioned that this was an interesting read. I wasn’t sure exactly what to expect, as I had never heard of Kurzweil before. After a few Google searches I got the impression that he was a quirky futurist.

This book was published back in 1999 and by the end looks very much like science fiction. Many of his predictions are founded on some sort of research. I can see how they would have seemed a bit “out there” almost 10 years ago. I wondered how many of his predictions would hold up. Central to his philosophy is the Law of Accelerating Returns. In short, technology will continue to progress ever faster as time goes on. He displays an interesting graph of the exponential increase of computational power in various models of computers over time. The line is slightly curved upward, which represents an increase in exponential growth over time. So, according to Kurzweil computation is progressing exponentially exponentially faster.
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