A letter that supports someone based on their attributes and capabilities. Used for job applications, school admissions, and volunteer opportunities
Wallbase is an online community for uploading and sharing wallpapers. Contains over a million high-quality user-submitted images. Features simple interface with search and filter tools
Letters can be formal, informal, or semi-formal. Formal letters are sent to official people. Informal letters are sent to friends. Semi-formal letters are sent to magazine advice columns
Gas sensors use chemiresistors with tin dioxide sensing material. Oxygen absorption causes current flow when gas is present. Sensor measures gas concentrations between 100ppm and 10000ppm. MQ2 sensor requires 5V power and 20-second preheating
Online tool suggesting shows and movies based on user input. Uses four key parameters: genre, type, IMDB ratings, Reelgood score. Created by Andrew Sampson in 2014, acquired by Reelgood in 2017
Basic equipment includes dumbbells, pull-ups, and elevated surface. Alternative options include resistance bands and water bottles