In motors, we don’t pick them by their horsepower rating. We pick them by amount of torque they deliver so that as load increases, the … Read More

The physics of the bullet explain how quick it will leave the barrel. And most shooters simply glance at the muzzle velocity written on the … Read More

We’ve got the muzzle velocity and bullet weight. Those seem like enough information. They’re not though. To understand a load, we must translates those values … Read More

When you finally arrive at your destination following a lengthy road trip, maybe you plug the address into Google Maps and notice that “average” speed … Read More

This page’s flow velocity calculator does something that gets asked about every day in HVAC and plumbing design; how fast is the fluid realy flowing … Read More

When the washing machine goes round, or car swerves out of control, you feel a push across your ribs. When something rotate, that’s called centrifugal … Read More

When you drop a stone into a pond, what happens? It sinks. When you throw in a piece of wood, it floats on top. Until … Read More

The hub doesn’t move much, but the rim spins around and flies past your hand. No magic there. It is just angular velocity. How fast … Read More

Cycling into a headwind feels like you’re battling fatigue. No, it’s not. That’s drag. For every watt you generate while cycling there’s an equal and … Read More

I bet you never give any thought to what you weigh when you step onto a bathroom scale. The scale spits out a number and … Read More