Archive for 'Tips' Category

3.14 is Good Enough Most of the Time

by Hans F. on Jul 23, 2009

Much of the calculations and scientific analysis for engineering applications can be done using approximations and valid assumptions to simplify an otherwise grossly complicated problem. If you were to take into consideration every single force, large or small, that could possibly interact with the system that you’re investigating, then your analysis work would become overblown [...]

Hypermiling – An Introduction

by Taylor B. on Jul 22, 2009

***Disclaimer: Real hypermiling is pretty dangerous and some aspects of it are illegal, so don’t break the law. Also, I do not really care about the status of the environment; I only hypermile for fun.
These days it seems that fuel economy is the selling point of every new car. Most people just look at these [...]

Most of the Rest Of the World

by Kevin C. on May 21, 2009

Most of the rest of the world uses Celsius to tell temperature, uses the 24-hour system to tell time. It’s understandable that converting to such a “foreign” scale or system can be daunting. Plus, why relearn something for which you might already have an intuitive sense, like with the Fahrenheit scale, for us here in America?
Outside [...]

Why Don’t Mirrors Flip Vertically? (Hint: It’s Not Because of Gravity)

by Kevin C. on Apr 7, 2009

So we were talking about plane mirrors the other day. What makes mirrors so special that they apparently only only reflect left and right and not up and down? After some discussion, we jokingly decided that  it was because of gravity, because one way or another, we can usually blame gravity for just about anything.
We’re [...]

Rotor Imbalance: Theory and Risks

by Hans F. on Feb 19, 2009

Have you ever driven a car that vibrated uncontrollably at certain driving speeds, especially on the highway? If you have, you probably noticed that these large vibrations occur when you drive at one specific speed, as shown on your speedometer, and the vibrations die out when you travel a little lower or higher than that [...]