The magnitude of an earthquake, usually expressed by the Richter Scale, is a measure of the amplitude of the seismic waves. The moment magnitude of an earthquake is a measure of the amount of energy released-an amount that can be estimated from seismograph readings.
Remove rust stains from virtually all surfaces you'll find in your bathroom. Restore porcelain bathtubs and sinks to their original condition, plus keep your toilet rust-free by using Iron Out Automatic Toilet Bowl Cleaner. Toilet Bowl and Water Tank Rust Stains â Use 1/2 cup (125 ml).
Add a few inches of hot water to a bowl and sprinkle in 2-3 tablespoons of the citric acid. Submerge your item and let sit overnight, remove in the morning, scrub off lingering rust flecks with a brush, rinse, and pat dry.