The Curious Case of Free Energy Device

Hi, I’d like to rectify free energy. It’s one of the hot topics between electronic enthusiasts. There are many demonstrations built by people out there, such as this guy from Pakistan who invented such machine with 1.6 million video video views. Electric companies hate him, mainly because he’s wearing huge sunglasses indoors. He has a […]

Solar Battery Charger (LiPo/Li-Ion) || DIY or Buy

A while ago. I realized that I got quite a few solar panels laying around that are not being used for anything Due to the nature of solar panels, it is obviously not possible though To directly connect them to projects and thus use them as power sources They’re constantly altering output voltage and current […]

Battery Spot Welder (CD Welder) || DIY or Buy

In a previous project video I showed you how to create a battery pack out of 18650 lithium ion batteries. Back, then I utilized a rather riskier and not recommended methods of connecting the battery cells together. By soldering the nickel strips directly to them. This can be dangerous because you heat up the battery […]

Voltage regulator tutorial & USB gadget charger circuit

In this video I’m going to talk about linear voltage regulators and show you how to use one to charge 5 volt USB devices like phones and MP3 players. So what is a voltage regulator? A voltage regulator is a device that takes an unregulated input voltage that could be fluctuating over time, and spits […]

Passive RC low pass filter tutorial!

In this tutorial I’m going to talk about passive low-pass RC filter circuits. So at a basic level… what are filters? Filters are used to change the frequency content of signals. You can experiment with this in software by playing with the graphical equalizer settings in your MP3 player. Here is a normal unfiltered sound […]

STEMonstrations: Solar Energy

Hi! Welcome aboard the International Space Station I’m astronaut Ricky Arnold and I’m currently at one of our human research facilities on ISS where you can see centrifuges laptops and other scientific equipment across from me is another one ease experiment racks where you can see ultrasound imaging more laptops cameras other equipment all stuff […]