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Weekly blogs posts regarding physics content and stuff :geek:

Entries in this blog

 

Wireless charging

Recently, wireless charging had been catching on in a lot of consumer technology especially smart phones. While almost useless at this point in time, it will hopefully get better over time, but here's the basics of how it works. There is a charging base, that must be connected to some conventional power supply, such as a wall outlet, and in the base, there is an induction coil which generates a changing magnetic field. A phone with wireless charging capabilities also has another induction coil,

NathanKenney

NathanKenney

 

Acoustic Guitar Physics

So just about everyone has played, or at least seen someone play a guitar before. But how does it work? Well in general, it's a pretty simple concept. You strum a string, or multiple strings, which creates a sound wave that enters the sound hole and is amplified inside the body when the sound waves enter the body and resonate within the wood. In order to get this to sound nice, however, the guitar needs to be tuned. In order for this to happen, several factors must be taken into account, suck as

NathanKenney

NathanKenney

 

How does glow in the dark work?

A lot of things glow in the dark, from toys to stickers to shoes. Just about anything you can imagine, someone's made it glow in the dark. There are several different categories of things that glow in the dark, but i'll be focusing on what makes most consumer products glow in the dark, since it's more relevant to every day life. While researching for this blog post, the second sentence of the Wikipedia page mentioned quantum mechanics, so this could be even more interesting than I initially thou

NathanKenney

NathanKenney

 

The purpose of an exhaust system

All cars have an exhaust system. Some are loud, some are quiet, and some are just totally broken. And some of them have a tip that functionally does absolutely nothing, but cost $15 and take an entire day to put on and don't even turn blue when you burn them. But what do they do? Well, simply, they filter dangerous and environment harming chemicals out of the exhaust, as well as quiet down the car quite a bit. But the way it actually works is  the catalytic converter creates an oxidizing effect

NathanKenney

NathanKenney

 

Fingerprint sensors

Recently, just about every phone to come out and even some newer laptops include a finger print sensor. But how does this technology work? Well, in an iPhone and most other mobile phones, the fingerprint sensor used is called a capacitive touch button, which works very similarly to the actual screen of the phone, which fundamentally acts as a capacitor with the button being a conducting plate, the epidermal layer of your finger acting as a dielectric, and the dermal layer acting as the second co

NathanKenney

NathanKenney

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