Physics 01
Why Does Water Have Such a High Specific Heat?
Water needs 4.184 J to warm one gram by 1 °C, over nine times as much as iron. Light molecules and hydrogen bonds explain why, with worked numbers.
everyday physics
Physics 02
Why Does Tyre Pressure Rise on a Hot Day?
A tyre set to 32 psi at 15 °C reads 35.2 psi at 35 °C. The ideal gas law explains why, and why you must use absolute pressure and kelvin to get it right.