How do you calculate ground speed? Ground speed can be determined by the vector sum of the aircraft’s true airspeed and the current wind speed and direction; a headwind subtracts from the ground speed, while a tailwind adds to it. … Continue reading →

Over the past few decades, Polyvinyl Chloride (PVC) plastic, commonly known as “vinyl,” has become one of the most widely-used types of plastics. We find it all around us: in packaging, home furnishings, children’s toys, automobile parts, building materials, hospital … Continue reading →

Delrin is stiffer and stronger in unfilled form, has shorter molding cycles, easy to machine, low moisture absorption, and better surface finish. What is stronger than UHMW? HDPE is used in a variety of applications and industries where impact resistance, … Continue reading →

With modular kitchens in demand, PVC has gained popularity as kitchen cabinets material too. PVC board for kitchen cabinets are of two types: PVC hollow boards and PVC foam boards. As the name implies, PVC hollow boards are hollow inside … Continue reading →

Acetal Copolymer The copolymer grade offers excellent performance at a slightly lower cost than Delrin®. Acetal copolymer offers consistent properties throughout the shape (being free of centerline porosity). What material is similar to Delrin? Delrin is a type of acetal … Continue reading →

When a plastic rod is rubbed with a cloth, the plastic rod becomes negatively charged as electrons from the cloth are deposited on the plastic rod. What happens when you rub a plastic rod? When a polythene rod is rubbed … Continue reading →

Should I soak fluorocarbon line? 1 Start by soaking the bulk spool of line in a bowl or bucket of warm water to make it supple and reduce the line memory. So the line memory is not increased make sure … Continue reading →

Use a lure that has sight, sound and smell. Use any color, as long as it is green. The colors that show up in the deepest water are greens, blues and blacks. All glow lures glow green. What colours do … Continue reading →

Polyvinyl Chloride has very poor heat stability. For this reason, additives that stabilize the material at higher temperatures are typically added to the material during production. Polyvinyl Chloride emits toxic fumes when melted or subject to a fire. Is it … Continue reading →

Individuals of certain salmon species are attracted to lights, like a moth to a lantern (USFWS 2015). Aquaculturists use specific light frequencies to strategically alter the timing of sexual maturation in farmed salmon (Leclercq et al. 2007) and to alter … Continue reading →

PVC pipe is more flexible than ABS, while ABS is a bit stronger and can resist a higher shock or impact. Additionally, PVC has an advantage in that it’s better at muffling the sound of water as it flows through … Continue reading →

How far below the transom should the prop be? If you have a short shaft motor, the top most part of the transom and the lower most part of the boat should be about 15 to 16 inches. For a … Continue reading →

4-Stroke Outboards Pros The fuel efficiency of a 4-stroke motor can be 50% better than that of a 2-stroke motor with the same HP. As for environmental concerns, 4 stroke outboards produce far less harmful emissions, which can be as … Continue reading →

PVC pipe/fittings/conduit can be softened by heating. So heating with a heat gun, we can make our own dust collection fittings. When PVC is heated, softening starts at approximately 250 degrees F, material becomes viscous at 350 degrees F, material … Continue reading →

Cavitation is a word to describe the creation of gas bubbles underwater that results from a fast propeller in low-pressure environments. At certain low pressures, a vacuum can cause water to “boil” at low temperatures, thereby causing the bubbles that … Continue reading →