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).
Vinegar can be used to clean rust from the inside of a gas tank because it contains acetic acid. This can be accomplished by filling the gas tank with water and then draining that. Next, plug the hole where the petcock goes, and fill the tank with the vinegar, leaving it in overnight to dissolve the rust.