Mercury thermometers were the go-to tools for measuring temperature. The basic principle was simple: mercury expanded and contracted with changes in temperature, and this movement was calibrated to provide an accurate reading. They were reliable and could measure a wide range of temperatures, which made them indispensable in science labs, hospitals, and even in our homes.
Read more →Natural gas is a fossil fuel made up mostly of methane, a type of gas. It forms deep beneath the Earth's surface over millions of years from the remains of plants and animals. We use it for things like heating homes, cooking food, and making electricity.
Read more →Metro Vancouver recommends that food waste should be disposed in food scraps ‘green bin’ collection programs rather than into sinks and drains with food grinders. Food grinders add additional solids to the wastewater stream that subsequently need to be removed at wastewater treatment plants.
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