Selecting a random sample from a set is simple. But what about selecting a fair random sample from a set of unknown or indeterminate size? That’s where reservoir sampling comes in, and [Sam Rose] has ...

Proper soil sample preparation is key to precise data on your soil’s pH, nutrient levels, and the exact soil amendments your ...

Samples are an essential currency found when exploring planets on different difficulty levels. Each sample type -- common, rare, and super -- is used to purchase unique upgrades for your Ship Modules ...

Protocols.io is an online platform designed for researchers to share their lab protocols and methodology as step-by-step instructions. Here, we share some of their latest protocols for preparing ...