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Amazingly Affordable 3D Printer…

Posted by Dave Mark on Mar 20, 2010 in Engineering, Robotics, Science

The technology to turn a digital spec into an actual piece of molded plastic has been around for a number of years now. But, as is the way of all technology, the price of that technology continues to plummet. Believe it or not, the printer shown here is available from a company called Desktop Factory for only $5000, about the price of the earliest laser printers.

Printer

This printer will take an AutoCAD-like spec and produce a simple, contiguous plastic piece, such as this one:

3d Plastic

I want one!!!! First thing I’d do is make some Lego compatible pieces. Imagine the fun you could have with this and a Lego Mindstorms robotics kit…

– Dave

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Space: Updated Powers of Ten…

Posted by Dave Mark on Jan 21, 2010 in Animation, Science, video

This one’s for you, Melissa!

When I was a kid, there was this video called “Powers of Ten” that showed a progressive series of images zooming out by powers of ten, from a picnic on Earth, out into space and out past our galaxy, then zooming back in by powers of ten, back to Earth, into a man’s skin and into a carbon atom. The video was made by someone at IBM. I remember being deeply affected by this video at the time. Here’s a link to the original video. See for yourself.

Though there is no reference to “Powers of Ten”, seems to me the video below is an homage of sorts, updated with much newer technology and, some would say, better music. I love them both.

– Dave

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Incredible Instant Ice Experiment…

Posted by Dave Mark on Jan 10, 2010 in Science

This is unbelievably cool. The vid is a few years old, but came up in today’s boingboing.net. I will be doing this one with the kids straight away!

– Dave

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The Physics of a Drop of Water…

Posted by Dave Mark on Jan 8, 2010 in Science, video

This is astonishing video of a water droplet falling into a puddle at two thousand frames per second. Amazing physics!

– Dave

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Gilbert U-238 Atomic Energy Lab…

Posted by Dave Mark on Dec 17, 2009 in Science

WOW!!! This is a real science kit, sold for kids back in 1951-1952. Check it out:

Atomic

Here’s a link to more pictures and info on this amazing “toy”, which includes four types of uranium ore, as well as a bunch of other fascinating atomic energy related things. Fascinating…

– Dave

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The Ancient Art of Water Harvesting…

Posted by Dave Mark on Dec 4, 2009 in Ecology, Science

We all know that water is incredibly important. As important as oil is today, as big a motivation for war, landgrabbing, and political intrigue, water will be tomorrow.It is said that by the year 2050, some 4 billion people will be facing severe water shortages. That’s half the world’s projected population. The world’s population is increasing, but the amount of fresh water is decreasing.

Anupam Mishra has made the study of water his life’s work. Below is a talk he gave at TEDIndia about the ancient art of water harvesting. Fascinating, and incredibly important work…

– Dave

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An iPhone App That Drives a Car…

Posted by Dave Mark on Nov 20, 2009 in Engineering, Inventions, Robotics, Science, iPhone

This is beyond awesome. I SO want to do this to my car. From the folks at National Instruments’ Waterloo Labs. Check out their web site for plans, schematics and source code. Buh-rilliant!!!

– Dave

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Crosstalk Between the Two Brain Hemispheres Makes You Smarter…

Posted by Dave Mark on Nov 11, 2009 in Science, Stu

OK, it’s just a study, but a pretty fascinating one. Researchers at Richard Stockton College in New Jersey (and my brother Stu’s alma mater) found that experiment participants who did a crosstalk exercise designed to stimulate communication between the left and right hemispheres of the brain before taking on a creative task, actually performed better on said task.

Here’s a link to the boingboing.net post and here’s a link to the study

– Dave

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Space Elevator Progress…

Posted by Dave Mark on Nov 6, 2009 in Robotics, Science

It takes a massive amount of money and power to place a satellite or other object in geosynchronous orbit. Currently, this task is performed by one of our aging shuttles. One theory, originally proposed by Arthur Clarke in his 1979 novel “The Fountains of Paradise” and currently being heavily researched by NASA is that a very thin, very strong cable can be used as the basis for a space elevator that can drag goods and people from the ground up into a space platform, all at a relatively negligible cost.

One key to making the space elevator a reality is the ability to beam power to a climbing object. Many people are working on solving this problem, spurred on mostly by a $2 million NASA sponsored contest, wherein contestants must guide their robots up a 2,953 foot cable dangled from a helicopter and back down again.

Here’s an article that describes the latest progress.

And below is a video sharing one team’s success. Fascinating stuff. Enjoy…

– Dave

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Removing Waste in Space…

Posted by Dave Mark on Nov 1, 2009 in Science

I’ve always wondered about this. The video below is a few years old, but a lovely explanation…

– Dave

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