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$\cdot$ How many times does a typical person blink her eyes in a lifetime?

4$\cdot 10^{8}$ blinks / lifetime.

Physics 101 Mechanics

Chapter 1

Models, Measurements, and Vectors

Physics Basics

Cornell University

University of Sheffield

University of Winnipeg

McMaster University

Lectures

04:16

In mathematics, a proof is…

04:48

In mathematics, algebra is…

00:56

Humans blink their eyes ab…

02:31

How many heartbeats are th…

01:33

An average person sneezes …

01:29

The average person takes a…

02:40

Estimate the number of tim…

00:27

BIRDS How many times do a …

When a flashing light appr…

05:36

How many times does a huma…

03:40

00:14

How much time (in years) d…

00:59

Snake Eyes What is the pro…

01:22

Estimate the number of bre…

02:22

How many times can a horiz…

02:56

How many times will the in…

02:57

How many times longer than…

02:25

A beating heart. How many …

00:55

If a clock strikes the pro…

00:25

A stroboscope is set to fl…

03:01

03:42

Okay, some power going to the chapter. One problem 27. And this says estimate how many times hopers and clinks her eyes in a lifetime. Okay, so thinking about Haft only blink. We can probably estimate there we blink. Maybe 10 blinks permanent. Seems about right when blank every six seconds or so. And let's go with a typical lifetime of 80 years since 20% tree here. Um, So now let's figure out how many blinks her 80 years or like that. So let's see, one lifetime. Okay, so 10 obliques per minute was Multiply this by one minute up here, and there are 60 minutes in an R. Sorry. I already got myself confused. Here minutes is on bottom. We want to cancel that out. Sass right minutes, powers. So for one hour and there are 60 minutes Cool. So now there are There are 24 hours for one day. There are 3 65 days, one year, and there's 80 years for one, like, Okay, so we multiply that all out and we see it. We got a big number of four times. 10 to the eighth makes for an average lifetime. So what? Oh,

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