I need to know where I am. The first step: measure the planet itself. Surface gravity g tells me something fundamental about this place.
JOURNAL III / DAY 10
Simple mechanics. Release an object from known height h, measure the fall time t. Then g = 2h/t². No fancy equipment needed — just a stylus, a timer, and patience.
JOURNAL III / DAY 10
On Earth, g = 9.81 m/s². If this number is different… I'm not on any planet I know. Let's find out.