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.

Oil-Shear Clutch-Brake Lets Lacrosse Stick Swing Realistically
Shear-oil clutch brake lets lacrosse stick swing realistically.
Powering Implants with Ultrasound
Powering wireless implants with ultrasound
Roboticists and Biologists Learn from Sidewinder Rattlesnakes
Sidewinders teach biologists and roboticists a thing or two.
Researchers Develop World’s Thinnest Generator
Introducing the world’s thinnest electric generator.
85 Years Ago: Machine Design’s First Year: Part 1 2
John F. Hardecker, the chief draftsman of the U.S. naval aircraft factory, begins a six-part series outlining how to run a ship-shape design team. He finishes the article with some words on standardization: “In conclusion, while standardization has its faults and pitfalls, these best can be avoided by keeping constantly in mind the true meaning of standardization.
Developing Medical Devices with 3D IM 1
Derek Mathers, business development manager at Worrell Inc., a design, development, and strategy firm, discusses how 3D printing is changing the way companies operate and how the technology itself is continually changing.
Earthquakeproofing for Concrete Bridges
Engineers at Washington University have developed a design for the framework of columns and beams that support reinforced concrete bridges so they will better resist earthquakes and be erected faster and less expensively.
Wearable Air Bag Protects Against Hip Fractures
Every year, one out of every three adults over the age of 65 falls, causing five times as many hospital stays as any other accidents and costing Medicare beneficiaries anywhere from $14,000 to $20,000. Worse yet, one in
2014 Machine Design Salary Survey 3
View the results of the 2014 Machine Design Engineering Salary Survey as we take a closer look at the numbers and offer insights into unemployment, growing salaries, outsourcing, wages, women in engineering, and other trends that affect you.
Recycling Used Tires Into Battery Electrodes
Carbon black recycled from used car and truck tires could lead to better anodes for lithium-ion batteries if researchers at the Oak Ridge National Laboratory are successful.
SpinSat Satellite Demonstrates Novel Thrusters
Engineers at the U.S. Naval Research Laboratory have built a beach-ball sized satellite they call SpinSat that will begin carrying out several duties soon after it is flown to the International Space Station aboard a SpaceX resupply mission.
Two Exotic Carbon Molecules Combine Into a Rectifier
Engineers at Stanford University combined two unconventional forms of carbon—buckminsterfullerene (also known as buckyballs) and diamondoids—and came up with a small electrical component: a rectifier.
Pneumatic Gripper Can Be Customized to the Workpiece
Engineers at RÖHM, which has its U.S. headquarters in Lawrenceville, Ga. (, are taking advantage of new technologies to quickly customize their RRMP grippers so that they efficiently handle and move round, prismatic, or free-form packages or parts.
Pack Expo International 2014 Rolls Into Chicago
Suppliers and vendors will show off their best packaging equipment while attendees stay up to date on the latest technologies and techniques in the packaging industry.
NASA Taps Two Companies for Spacecraft to Take Crews to the Space Station
Two U.S. companies will build spacecraft capable of resupplying the space station with crew and cargo.

Sponsored Introduction Continue on to (or wait seconds) ×