Title text: "röntgen" and "rem" are 20th-century physics terms that mean "no trespassing."
So "∂" is "d" wearing a graduation cap, got it.
2520: "Symbols"
2520: "Symbols"
Title text: "röntgen" and "rem" are 20th-century physics terms that mean "no trespassing."
So "∂" is "d" wearing a graduation cap, got it.