Stephen Mraz

Stephen
Mraz
Senior Editor,
Machine Design

Steve serves as Senior Editor of Machine Design.  He has 23 years of service and has a B.S. Biomedical Engineering from Steve was a Flight officer in the U.S. Navy. He is currently responsible for areas such as aerospace and medical.

Articles
3D-Printed Monster Invades Comic-Con 2014
A team of engineers and designers, including 3D printing experts from Stratasys Ltd., Eden Prairie, Minn., put their heads together to concoct an eye-popping attraction for the 2014 Comic-Con International show in San Diego.
First Direct-Diode Laser Slices Through Metal 1
Start-up company TeraDiode, Wilmington, Mass., has taken technology developed in MIT’s Lincoln Laboratory to develop the first metal-cutting machine that uses only laser diodes–there are no intervening crystals for amplification or focus.
Technology Adds the Sense of Touch to Prosthetic Hands
Biomedical researchers at the Veterans Administration are exploring options and developing techniques for directly stimulating nerves to let prosthetic users feel sensations in their artificial hands.
Low-Cost Sensor Accurately Tracks Cylinder Position
Magnetostrictive sensors that use line-of-flight technology to determine a cylinder’s position are not especially rugged, and resistive potentiometers often lack the necessary resolution or operational life.
What’s the Difference Between Abduction and Adduction (Biomechanics) 1
In medicine and biomechanics, movements of limbs and other body parts toward or away from the center line of the body (a line that runs up and down the center of the human body) are termed adduction and abduction, respectively.
NASA's new SIAD design
NASA Explores Supersonic Decelerators for Martian Landings
NASA is working to increase payload size for Mars missions.
Making Alloys More Like Bamboo to Increase their Strength 2
Researchers are making alloys more like bamboo to increase their strength.
Lasers Help Identify Biological Targets
Lasers Help Identify Biological Targets
Is clumping density standard, regardless of size?
Is clumping density standard, regardless of size?
From Tomato to Tom-AUTO: Ford and Heinz Team Up
Ford Motor Co. has been working for two years with several companies, including the H.J. Heinz Co., on developing a 100% plant-based plastic that could be used to make automotive parts and fabrics and replace petroleum-based materials.
Canadian Concept Car Chock-full of Connected Technology

The Connected Vehicle Working Group in Canada, established by the Automotive Parts Manufacturers’ Association, crammed all the Canadian–built “connected-vehicle technology” it could find into a concept car, which started as a Lexus RX350. Here are some of the sensors and features that were added:

Locks On Rivers That Stop Invading Species

Around 1900, civil engineers connected the Great Lakes to the Mississippi River Basin to let shippers access both waterways. But within the past 30 years, biologists and the Army Corp of Engineers have been trying to keep aquatic species from moving out of native habitats in the Great Lakes and into the Mississippi River Basin and vice versa.

Wolf, a New Supercomputer, Up and Running at Los Alamos National Lab
Wolf, a new supercomputer, up and running at Los Alamos National Lab.

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