Eccentric online scientist Mehdi Sadaghdar has made a name for himself online for his ridiculous how-to videos after originally going viral at the start of the year demonstrating Electrostatic Discharge. He’s basically just like Kramer from Seinfeld, only with a science degree. 

Now, he returns to show viewers how to solve a simple and common problem. How to change a light bulb. It’s not as easy as one might think.