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.
Amazon will sell you groceries, one way or another. Case in point: The day before it announced plans to buy Whole Foods for a cool $13.7 billion, it released Amazon Dash Wand, a small Alexa-powered gadget that will likely be just as integral to the companyâs produce push. Amazonâs new scanning stick is Jeff Bezosâs latest attempt to link the virtual world with the physical one.