Brass Material For Door Knobs
You might have observed that many doorknobs are made of brass. This is because brass surfaces are resistant to bacteria buildup. Of course, this is important because a lot of people touch the doorknob! We don’t even want to think what it might be like if another material is used.
Brass Material For Door Knobs
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Bottle Cap Discs
Have you ever seen the plastic disc under the cap of a soda bottle? While it might seem unnecessary, it actually helps us see through carbonation. Although we do not really know the science behind this, the disc actually traps carbon dioxide, preventing the soda from losing its fizz. Who likes flat soda? That’s right, no one.
Bottle Cap Discs
