Brass Material For Door Knobs
In case you have not noticed, doorknobs are often made of brass. This is because brass is resistant to bacteria buildup. It makes sense since so many people are going to touch the doorknob! Can you imagine what it would be like had they used something else? The thought definitely makes us shudder.
Brass Material For Door Knobs
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Bottle Cap Discs
You might think the plastic disc that is under the soda bottle cap is unnecessary, but it actually allows you to see through carbonation. We are not sure of the exact science, but the plastic disc traps carbon dioxide. This stops soda from losing its fizz, because nobody likes flat soda, right?
Bottle Cap Discs
