Once a year, it’s time to pull your snowmobile out of storage. Like it or not, it’s been sitting under a tarp in your garage or storage shed. Old gasoline and oil have gunked up the fuel lines and coated the carburetor for months. Before you take your snowmobile out on the trails, you need to make sure it’s safe to run. Checkup and maintenance are called for.
3D printing, otherwise known as “additive manufacturing,” involves “printing” a solid object using a computer-guided device which extrudes a substrate to form the object. This new process has come into its own over the last decade and is now being used for a myriad of applications across many industries, including the aerospace industry. Here are a few of the ways the aerospace industry benefits from 3D printing: [Read more…]
Sound travels in waves. Imagine that if you could see sound waves–they might look something like ocean waves. Then, visualize those waves or ripples passing by an object, such as a piling standing in the water. The number of waves that pass by the piling per second would be the frequency. Frequency is usually measured by “hertz,” a unit of measurement which corresponds to one cycle per second. High-frequency sound waves such as ultrasonic waves are measured in thousands of cycles per second, or kilohertz (kHz). Ultrasound starts at the upper limit of human hearing, approximately 20 kHz. Many animals can hear above this range, such as dogs and bats, and some, such as dolphins, communicate using it.
Ultrasonic waves have many incredible applications across a wide variety of industries, ranging from medical science to manufacturing. Not least among these is ultrasonic cleaning, which uses ultrasonic sound waves traveling through liquid to produce cavitation bubbles that clean more thoroughly than solvents and scrubbing alone.
Ultrasonic waves can’t be heard by humans, though some animals, such as bats, can hear them. Their effects on materials and their abilities may look like magic, but they’re pure science. Unlike normal ways of making sound, which often involve striking a surface, ultrasound is made using electrical equipment that vibrates with an extremely high frequency. Crystals of materials such as quartz vibrate very fast when electricity is passed through them—an effect called “piezoelectricity.” As they vibrate, they manipulate the air around them and the fluids they come in contact with, producing ultrasound waves. Devices that produce ultrasound waves using piezoelectricity are known as piezoelectric transducers. [Read more…]
Whether you’re a private gun owner or a gun shop owner, cleaning firearms is definitely the most arduous part of dealing with them. Yet a clean gun is necessary for accurate and safe shooting. Many experts recommend cleaning guns every time they’re shot and definitely after target practice, when many rounds are shot.
Carbon buildup inside the barrel, for example, can affect the bullet’s velocity and, potentially, its accuracy. Lead build-up in the barrel, smoke fouling in other parts of the gun, plus plastic residue when shooting shotgun shells all can contribute to decreased gun safety and accuracy.
Cleaning a gun the traditional way involves a somewhat tedious, multistep process involving strong chemical solvents and hand scrubbing, which can unintentionally remove gun bluing, exposing the gun to potential rust damage. [Read more…]