Transuranium Elements, chemical elements with an atomic number greater than 92, the atomic number of uranium. The elements with atomic numbers 93 through 103 are actinide elements; those with an atomic number greater than 103 are known as transactinide elements.
If you were to touch dry ice, it wouldn't be anything like touching water ice. So what's it like? Is it hot or cold? And would it leave a mark?
Everyone from the father of anatomy to modern-day pharmaceutical companies has used humans as guinea pigs. Do we always need live test subjects to advance science?