Summary of the strengths and weaknesses of experimental designs A Level exam tips Answering exam questions (PSYA1 AQA A specification) Questions about types of experiments tend to be 1 or 2 mark questions that require you to: Identify the type of experiment in an example; Give 1 strength and 1 weakness of that type of experiment
Amazonâs wand is basically Dash 2.0. Like the companyâs first bar-code scanner, which was limited to Amazon Fresh customers, the 6-inch stick has a rubberized loop at the top for hanging purposes, but this time around itâs also magnetic.
Amazonâs Echo and the smart TVs that are listening to and watching everything you do. Amazonâs Echo defies easy description. Actually, thatâs not quite true: the easy way to describe it is âcreepy as hellâ. Whatâs trickier is explaining what it is. The Echo (below) is a 20cm-tall black cylinder, that sits in your home and listens to everything you do.