Is It Heavy? — A Daily Mass Guessing Game

Field notes

Players adjust a logarithmic dial to estimate the mass of five pictured objects, with an optional confidence setting before moving to the next question. Scores are capped at 500 points, and the page says its server verifies submissions while retaining only the top five results for each date. Object images and basic facts are attributed through links to Wikipedia and Wikimedia Commons, with reuse and licensing handled at the individual image level.