7 Signs That Now Is the Time for Energy Harvesting
Energy harvesting collects energy that would otherwise go to waste, such as heat, vibrations, and sunlight, then converts it to electricity and puts it to use. It may not be a technology you are familiar with, but it is poised to become mainstream and change the way we power our electronic devices and what we think of as an energy source.
What's the Difference Between Soldering, Brazing, and Welding?
Soldering, brazing, and welding are all methods of joining two or more pieces of metal and selected other materials. They are also methods used to fill gaps in metal parts.
2016 Machine Design Salary & Career Report: Five Years of Engineering Thoughts and Opinions
Since 2012, when Machine Design published its first salary and career report, we have seen an increase of salary growth for engineers: From 2012 to 2014, the average salary was around $90,000 a year. In 2015, the salary jumped to $98,000 a year. This year, 56.6% of engineers responded that they expect their salary to increase in 2016.
What's the Difference Between FEM, FDM, and FVM?
The finite-element method is a computational method that subdivides a CAD model into very small but finite-sized elements of geometrically simple shapes. The collection of all these simple shapes constitutes the so-called finite-element mesh.
What's the Difference Between Types of Solar Panels?
Solar panels or photovoltaics (PVs) are not new in terms of the technology. However, manufacturing processes, cost reduction, and new research has some engineers thinking that photovoltaics will rival traditional power sources, such as coal. How important is Big Solar going to be? And what are the differences between the different types of photovoltaics?
What’s the Difference Between Conduction, Convection, and Radiation?
Heat transfer is the physical act of thermal energy being exchanged between two systems by dissipating heat. Temperature and the flow of heat are the basic principles of heat transfer. The amount of thermal energy available is determined by the temperature, and the heat flow represents movement of thermal energy.
What's Inside the Star Wars BB-8 Droids?
“Force Friday,” September 4th, brought a huge collection of new Star Wars toys. Among all the items, the two BB-8 toys were absolute buys.
Water Molecules Take on Hexagonal Structure in Nanoscale Spaces
In tiny spaces, water's hydrogen atoms quantum-tunnel equally between six configurations.
What’s the Difference Between Failure Theories?
Take a quick review of loading classes and failure theories to make sure your designs are efficient and safe.
A Gallery of Self-Tapping Screws
Self-tapping screws are usually drilled into pre-made holes (pilot holes) in metals, such as zinc, aluminum, and bronze and its alloys, as well as plastics and resin-impregnated plywood. They create threads in the material they are driven into. Self-tapping screws are one-piece fasteners—there is no nut—so they can be installed quickly and action is only required from one side of the joint. Mating threads made by the screw fits the screw’s threads closely, so no clearance is needed and the close fit keeps the screws tight despite vibrations.
Low-Cost 3D Printers Are Growing Up
The 3D printing community can be roughly divided into two groups: the high technology and the accessible technology sectors. Machine designers have embraced the high technology side for their work, but it may be time to take another hard look at the low-cost accessible technology side for the benefits such 3D printers can bring to the workplace.
Germany’s Lessons in Windpower
About 15 years ago, Germany embarked on an ambitious plan to re-engineer how it got its electricity. Its goals were noble, but that alone hardly guarantees success. Let’s take a look at those goals and see how they compare to the results so far.
Industrial Design & Engineering Show
In addition to robotic arm serving beer, the ID&E show will feature a lineup of speakers presenting information about emerging technologies and their applications in engineering careers. Topics will include the Internet of Things, artificial intelligence, and 3D printing. Did we mention you can get a FREE pass on the link above?
4 Things You Must Know about the IIoT
The Industrial Internet of Things (IIoT) is slowly transitioning from being a mere buzzword to a concrete reality. Innovation in this field is mainly led by large companies that have already started to implement IIoT ideas in various applications. Now they are able to observe the results of their investments in IIoT.
Interconnect Innovations Meet Demands of Shrinking Designs
In today’s modern applications, interconnects are receiving more attention than ever as designs become smaller and more mobile. Simply put, interconnects are the travel paths of an integrated circuit, connecting elements of the circuit together and to other exterior components, such as batteries or electric switches. Metal layers of interconnects vary in numbers and sizes, depending on the...
Accurately Calculating Spring Heights
Most textbooks and guides do not clearly distinguish between types of helical compression springs when giving equations for solid height of the spring.
What’s the Difference Between the Elastic Modulus and Kinetic Modulus?
In 1807, Thomas Young discovered that stress in a material (F/A) is linearly proportional to the strain (change in length/original length) in that material. This, in turn, led to the discovery of a proportional constant, the elastic or Young’s modulus, E, and the equation, ɛE = σ, where ɛ is strain and σ is stress, the foundation of stress analysis.
Who says engineering has to be serious?
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