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December 5, 2021

I like to watch*...

... the mesmerizing on-screen display of Apple Watch's oxygen saturation app as it analyzes and processes the result.

Screen Shot 2021-12-01 at 9.21.03 AM

I still marvel that what was once bleeding edge technology โ€” requiring a wheeled cart to move the early $5,000 machine from patient to patient โ€” has been transformed into an app.

*Peter Sellers was so good as Chauncey Gardiner in the wonderful 1979 film "Being There," in which, at a crucial moment,

he uttered the phrase memorialized in the headline up top.

December 5, 2021 at 04:01 PM | Permalink


I wondered how a cheap drugstore oximeter could possibly be accurate,
given all the possible differences in skin thickness, etc., etc.

It uses a simple fact about light and blood content:
Infrared and red light respond in opposite ways to oxygen in blood.
So, use a pair of these LEDs together and find the difference in the result,
and the extraneous parameters cancel out.

Well, I found it fascinating.

Posted by: Luke | Dec 6, 2021 9:40:25 AM

The novel, by Jerzy Kosinski, is very funny.
The film caught the spirit of the novel well
(which is so seldom the case).
And Peter Sellers is the perfect Chance.

Posted by: Luke | Dec 6, 2021 9:29:56 AM

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