Table of Contents Table of Contents
Previous Page  54 / 58 Next Page
Information
Show Menu
Previous Page 54 / 58 Next Page
Page Background

STRESS RELIEF

5 4

3D PRINTING DINOSAUR FOSSILS

MakerBot, Brooklyn, N.Y., introduced T-Rex Skeleton, an anatomically

correct, scaled model of a full Tyrannosaurus rex skeleton. The T-Rex

lived in North America more than 65 million years ago. The giant has

long been a favorite of 3D modelers, but is difficult to sculpt and 3D print.

In addition to the T-Rex skeleton, the company also introduced a T-Rex

skull. Both fairly complex models showcase advanced sculpting and are

geared toward education, functional use, and scientific content. The

T-Rex skeleton model contains 19 files for a total of 79 pieces, which are

numbered, labeled, and come with assembly instructions.

makerbot.com

.

Two new 3D printable models, a T-Rex skeleton and

a T-Rex skull, were released by MakerBot. Courtesy of Business Wire.

FIGHTING AIR POLLUTION WITH POETRY

Simon Armitage, poetry professor at the University of Sheffield, UK, collaborated with

science professor Tony Ryan to create a catalytic poem called

In Praise of Air

—printed

on material containing a formula invented at the university that is capable of purifying

its surroundings. This inexpensive technology could also be applied to billboards and

advertisements alongside congested roads to cut pollution. The 10 × 20 m (38 × 66 ft)

piece of material that the poem is printed on is coated with microscopic pollution-

eating particles of titanium dioxide, which use sunlight and oxygen to react with

nitrogen oxide pollutants and purify the air. “This poem alone will eradicate the nitrogen

oxide pollution created by about 20 cars every day,” says Ryan.

For more information:

Tony Ryan,

t.ryan@sheffield.ac.uk

,

www.sheffield.ac.uk

.

CALCULATING THE STRENGTH OF SPIDER-MAN’S WEB

Spider webs are notoriously strong, with spider silk reported as

having a tensile strength of up to 1.75 GPa. Carbon nanotubes

(CNTs) are even stronger, handling 63 GPa or more. Though

according to the 1986

Official Handbook of the Marvel Universe,

Spidey’s webs are made of a nylon-like material that can

support a measly 0.5 GPa. But can the strength of a specific

material alone account for the properties of Spidey’s web?

The structure of the web is also clearly important. But what is

the web actually made of? One hypothesis is that the web may

be made of carbon nanotubes. If so, we may see something

Spidey-esque sooner rather than later.

For more information:

Suveen Mathaudhu,

snmathau@ncsu.edu, ncsu.edu

.

Cover image of Amazing Spider-Man #520 by Mike Deodato.

Courtesy of

marvel.com

.

A D V A N C E D M A T E R I A L S & P R O C E S S E S | J A N U A R Y 2 0 1 5