Should you keep your tent flaps open? What happens to helium balloons when you let them go? Why does bottled water have a use by date?Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.
Should you keep your tent flaps open? What happens to helium balloons when you let them go? Why does bottled water have a use by date?Dr Karl answers these questions and more, on triple j Mornings with Lucy Smith.