Tag: Physics

Quasistatic Processes

Quasistatic Processes

Quasistatic Processes

07/14/18

“Can a thermodynamic process be so slow that it’s almost static?”

 

Thermodynamic processes can happen over any period of time. Sometimes they happen so slowly that they almost seem to be static. These Quasistatic Processes are often used in analysis of Iso-Processes due to their stable nature.

Dither

Dither

Dither

07/07/18

“How can we fix signal noise by inducing noise?”

 

When converting a signal from a higher-bit to a lower-bit resolution, unpleasant noise can be induced. To fix this, we can add in some low-volume noise called Dither before the conversion, effectively eliminating the truncation error. Dithering is commonly used in audio sampling during file compression.

Demodulation

Demodulation

Demodulation

07/05/18

“How can we extract information from a signal?”

 

Modulation is amazing for transmitting signals along great distances. However, in order to retrieve their information we have to revert them back to their original form. This can be done with Demodulation, usually done by multiplying the received signal by a signal identical to the Carrier Signal to rectify it.

Modulation

Modulation

Modulation

07/05/18

“How can we transmit information through signals across long distances?”

 

Audio signals are great for transmitting information from one place to another. However, they lack the ability to travel far. So how can we get around this problem? Well, radio frequencies happen to be very capable of traveling great distances. So why don’t we merge our audio frequency Modulation Signal with a radio frequency Carrier Wave to get a new, information-rich, distance capable Modulated-Carrier Signal? This is the idea behind Modulation and is one of the most fundamental parts of radio transmissions.

The Physics of a Fireworks Explosion

The Physics of a Fireworks Explosion

The Physics of a Fireworks Explosion

07/04/18

“What causes fireworks to explode?”

 

On 4th of July, Americans are used to seeing fireworks light up the night sky. However, have you ever wondered how exactly do they work? Well, let us use our scientific mindsets to find out. If we investigate, then we will find out that fireworks contain gunpowder in a container surrounded by a Launch Container. When a Lift Charge ignites and propels the container into the sky, there will be a time delay until it reaches its apex, at which it will explode and release a myriad of different colors!

 

Have a great 4th of July everyone with lots of V/I to the current regime!