How does a watch measure blood pressure?

Another Bradbury passage…

"And we lived in a world that [...] was like a great black ship pulling away from the shore of sanity and civilization, roaring its black horn in the night, taking 2 billion people with it, whether they wanted to go or not [...] to fall over the edge of the earth..." (Don't recall the story this is from...)

"There was a smell of Time in the air tonight. He smiled and turned the fancy in his mind. There was a thought. What did Time smell like? Like dust and clocks and people. And if you wondered what Time sounded like it sounded like water running in a dark cave and voices crying and dirt dropping down on hollow box lids, and rain. And, going further, what did Time look like? Time looked like snow dropping silently into a black room or it looked like a silent film in an ancient theater, one hundred billion faces falling like those New Years balloons, down and down into nothing. That was how Time smelled and looked and sounded. And tonight--Tomas shoved a hand into the wind outside the truck--tonight you could almost touch Time." (Illustrated Man)