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Posts Tagged "3-d printing"

Assignment: Impossible

A Modest Proposal: A Pocket 3-D Printer

In the series “A Modest Proposal,” my colleagues and I will propose inventions and projects that I think are eminently doable and would love made real. The world is witnessing a revolution in 3-D printing, where one can feed machines blueprints and have them conjure virtually whatever you want right from a dazzling variety of [...]

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Observations

Which World Will We Face in 2030?

Last week, I and some 200 other attendees of the Global Trends 2030: U.S. Leadership in a Post-Western World conference got a thought-provoking look at the current “megatrends” leading to four possible futures for the world some 10 to 15 years from now. Cutting across all of them is the disruptive influence of emerging technologies—which [...]

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Observations

Print It: 3-D Bio-Printing Makes Better Regenerative Implants

3-d bio-printing tissue scaffold cells

Desktop 3-D printers can already pump out a toy trinket, gear set or even parts to make another printer. Medical researchers are also taking advantage of this accelerating technology to expand their options for regenerative medicine. Brian Derby, of the School of Materials at the University of Manchester in England, details the advances and challenges [...]

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Observations

Mathematicians at Play: 3-D Printing Enters the 4th Dimension

I was at a math conference last week, and one of the other attendees brought a puzzle. I am a pretty slow puzzle-solver, so it will be a while before I figure out how to assemble those five pieces to get this. Three views of the assembled puzzle. Saul Schleimer, a mathematician at the University [...]

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Observations

3-D Printing Software Helps Designers Avoid Rookie Mistakes [Video]

3-d print

It seems the future of 3-D printing is limited only by one’s imagination. The process is already used to build—layer by layer—jewelry, toys and a variety of prosthetics, with some predicting that additive fabrication of space station spare parts and even food isn’t far behind. Despite this promise, design flaws can greatly impact the quality [...]

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Observations

Mobile Apps Offer 3-D Printing Via the Cloud [Video]

3-D printing,ipad,iphone

As 3-D printing has matured over the past decade, the process has proved an effective way for artists, entrepreneurs and academics to produce custom-designed parts and prototype models. Now 3-D printing is becoming even more accessible through Web sites and apps that let iPhone and iPad users upload designs or create new ones and have [...]

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Octopus Chronicles

3-D Printed Jets Mimic Octopus Propulsion

3-d-printed octopus propulsion jet

An octopus spends most of its time crawling around on the seafloor looking for dinner—and trying to avoid becoming it. But when it needs to make a quick move, it can switch into overdrive and jet away. To do this, it sucks water into its mantle and then quickly expels it through a funnel. The [...]

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Roots of Unity

Nothing Is More Fun than a Hypercube of Monkeys

More Fun than a Hypercube of Monkeys, a sculpture by Henry Segerman and Will Segerman. The monkeys do not all look like they are the same size, but that is due to the stereographic projection technique used to visualize a 4-dimensional object in 3-d. (Similarly, if one part of a 3-d object is closer to a surface than another part, it will appear larger when projected to that surface.) Image: Henry Segerman and Will Segerman.

Monkeys! Mathematical groups! 4-dimensional geometry! Together at last! This sculpture, called More Fun than a Hypercube of Monkeys, answers an open question: has the quaternion group ever appeared as the symmetry group of an object? Thanks to mathematician Henry Segerman and mathemusician Vi Hart, the answer is now yes. Their very readable paper about the sculpture [...]

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