A man has built a rechargeable battery pack big enough to power his whole home - using the batteries from discarded vapes. Electronics engineer Chris Doel, 26, stripped the lithium batteries from 500 binned vapes to create a single one large enough to run his entire house electrics for eight hours. He wired the 2.5 kWh battery in to his home with an inverter and ran all electrical components entirely off-grid for eight hours, including the microwave, kettle, and all lighting. Chris, who works fo

#poweruniverse22 #power #powerforce #josephsikora #tommyegan | tommy from power

A quick proof of the logarithmic equivalence of the inverse hyperbolic sine function. A nice exercises that brings together inverse functions, laws of indices, quadratic equations, properties of the exponential function, and more! #math #calculus #engineering

Alternative to Nested IF Formulas in Excel

طريقة مجموع ريمان لتقريب المساحة تحت المنحنى

Using Apply to Each in a Power Automate Flow to Loop Through Azure DevOps Query Results