Originally published as a series of pamphlets in 1751, the first collected edition of Experiments and Observations on Electricity Made at Philadelphia in America by Benjamin Franklin was the fourth ...

Presenter 2: In this film, we will look at how to collect valid measurements when we carry out an experiment. Presenter 1: For example, I want to investigate the distance a car travels when the height ...

The reluctance to use film and video equipment for systematic observation and recording can be partially attributed to an assumption of reactivity and internal invalidity. Three sources of reactivity ...

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...