Due to the way terminal velocity caps the maximum speed that something can fall, a small and light object like a penny will never gain enough speed to kill someone regardless of how high it is dropped from.
The Physical Sciences are branches of science that study non-living systems including Astronomy, Chemistry, Earth Science, and Physics.
You can’t turn charcoal or coal and peanut butter into a crystal at home by heating the charcoal or coal and putting it in peanut butter and ice. However, scientists can turn many carbon-rich substances into crystal in a lab.
Cows are on of the top emitters of greenhouse gases. A single cow on average release between 70 and 120 kg of methane (a greenhouse gas) per year. Meanwhile, there are roughly 1 – 1.5 billion cows on earth as of 2018.
Botulinum Toxin (AKA “Botox”) is the most lethal natural toxin known to human kind, that fact helps explain its paralytic effect.
The one-electron universe theory postulates that all electrons and positrons are actually a single entity moving back and forth in time.
In theory, the speed of light, in a perfect vacuum, measured from an inertial frame, is constant with an exact value of 299,792,458 m/s.