Abstract: This article examines the normal form of a multiple-input-multiple-output (MIMO) linear time-varying (LTV) system. It explores the transformation of such a system into its normal form using ...

AFL on Tuesday gave clubs the green light to recruit Thomas in the national draft or as a free agent, after the league restored his ­eligibility for all competitions. Thomas was moved on by North ...

I love a good shifter. It can transform a ho-hum car into something that is genuinely a blast to drive. Hell, in some cases, with the right design and engineering, a shifter can even be a work of art.

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The original version of this story appeared in Quanta Magazine. Since their discovery in 1982, exotic materials known as quasicrystals have bedeviled physicists and chemists. Their atoms arrange ...