Heat is light. Light is energy in motion within space. Any object at any temperature higher than absolute zero will emit this energy. The formula … Read More

Thermal radiation lets you see temperature. As an object warms, its heating element go from a dull red, to bright orange, to white hot. Its … Read More

When you look at a star, you see a point of light. You see brightness, but astronomers sees numbers that work backwards. In fact, the … Read More

Here’s an example: Two stars are visible next to each other in the sky. One shines brightly; the other barely flickers. You instantly notice the … Read More

In just a few seconds, this Doppler shift frequency calculator at JSCalc-Blog.com makes a familiar physics phenomenon into something you can apply. When one object … Read More

When you play two tones that is almost but not quite identical, they don’t just join to form an unchanging chord. Instead, they beat. That … Read More

Consider that you might know that playing exact same note on a piano will sound different then that played by a violin. This is because … Read More

Enter your frequency value here, then tap the calculate button. This angular frequency calculator will convert your inputted frequency into angular frequency. This is how … Read More

So you’ve got your coax hooked up, your antenna’s tuned, fired up the transmitter, and noticed that the reflected power increases as the power meter … Read More

That is the idea behind our current divider, which is simple in theory, but how do you size it? Current goes where it wants: through … Read More