# Identify a linear conversion **URL:** \ **Category:** Factual Questions\ **Created:** [July 1, 2014, 10:52pm UTC](https://boards.straightdope.com/t/identify-a-linear-conversion/692146 "2014-07-01T22:52:28Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![HoneyBadgerDC](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/honeybadgerdc/32/1033_2.png) [@HoneyBadgerDC](https://boards.straightdope.com/u/HoneyBadgerDC)\ **Post date:** [July 1, 2014, 10:52pm UTC](https://boards.straightdope.com/t/identify-a-linear-conversion/692146/1 "2014-07-01T22:52:28Z")
I dropped my chronograph for checking the speed on arrows and now it is reading in a conversion I can’t identify. What I know to be about 70 fps s giving me a number of 1400. I don’t know if that is per second or minute or hour. It doesn’t seem to fit anything per second I can find. It just occured to me as I was typing this it might be per something else besides seconds?? ---
**Author:** ![HoneyBadgerDC](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/honeybadgerdc/32/1033_2.png) [@HoneyBadgerDC](https://boards.straightdope.com/u/HoneyBadgerDC)\ **Post date:** [July 1, 2014, 10:55pm UTC](https://boards.straightdope.com/t/identify-a-linear-conversion/692146/2 "2014-07-01T22:55:46Z")
Meters per minute seems kind of close, is anything measured in meters per minute? ---
**Author:** ![Jragon](https://avatars.discourse-cdn.com/v4/letter/j/e19b73/32.png) [@Jragon](https://boards.straightdope.com/u/Jragon)\ **Post date:** [July 1, 2014, 11:01pm UTC](https://boards.straightdope.com/t/identify-a-linear-conversion/692146/3 "2014-07-01T23:01:35Z")
1400/60 is 70/3, multiply that by 3 and you get 70. So it could be yards/minute 1400 yard/minute \* ( 3 ft / 1 yd) \* (1 minute / 60 seconds) = 70 feet / second. Of course, I’m am almost completely guessing. ---
**Author:** ![HoneyBadgerDC](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/honeybadgerdc/32/1033_2.png) [@HoneyBadgerDC](https://boards.straightdope.com/u/HoneyBadgerDC)\ **Post date:** [July 1, 2014, 11:05pm UTC](https://boards.straightdope.com/t/identify-a-linear-conversion/692146/4 "2014-07-01T23:05:08Z")
> [@Jragon](#): > > 1400/60 is 70/3, multiply that by 3 and you get 70. So it could be yards/minute > > 1400 yard/minute \* ( 3 ft / 1 yd) \* (1 minute / 60 seconds) = 70 feet / second. Of course, I’m am almost completely guessing. I think you got it. If I just divide by 20 I can still use it. I actually shot an arrow through it.