/sci/ - Science & Math » Thread #13382504

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Miles Per Hour / Kilometers Per Hour

Anonymous Sun 11 Jul 18:56:35 2021 No.13382504 View Reply Original Report

Quoted By: >>13382575 >>13382586 >>13382599 >>13382732 >>13382937 >>13384330 >>13384351

Why is speed measured in miles per hour and kilometers per hour instead of something more practical like meters per second or feet per second? It's kind of hard to visualize long distances over long periods of time.

Anonymous

Anonymous Sun 11 Jul 2021 19:18:25 No.13382575 Report

Quoted By:

>>13382504
>It's kind of hard to visualize long distances over long periods of time
How does the 'meter per second' support this?

Anonymous

Anonymous Sun 11 Jul 2021 19:22:36 No.13382586 Report

Quoted By: >>13382675

>>13382504
OP please go on a road trip sometime in your life. its a good experience and it can really help one put distance into perspective

sorry not sorry but you sound retarded being this ignorant

Anonymous

Anonymous Sun 11 Jul 2021 19:25:58 No.13382599 Report

Quoted By: >>13382687

>>13382504
It was a compromise because height is measured in feet

Anonymous

Anonymous Sun 11 Jul 2021 19:54:59 No.13382675 Report

Quoted By: >>13382706 >>13382856 >>13384298

>>13382586
Google will tell you approximately how long it will take before you reach a destination. Thinking about speed in meters per second is more intuitive, and it would make doing work in science more intuitive.

Anonymous

Anonymous Sun 11 Jul 2021 19:57:51 No.13382686 Report

Quoted By:

this is your brain on SI. thank you, america, for protecting our children from this painful death, even as you kill them with a thousand other cuts

Anonymous

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Anonymous Sun 11 Jul 2021 19:58:55 No.13382687 Report

Quoted By: >>13382704 >>13382716 >>13382747 >>13382766

>>13382599
>height is measured in feet
Only in third world shitholes

Anonymous

Anonymous Sun 11 Jul 2021 20:05:36 No.13382704 Report

Quoted By:

>>13382687
according to your map, around 80% of the countries that don't measure in feet are third world shitholes, while only 70% percent of those that does are. i'm shocked that an SI brainlet such as yourself can't into statistics

Anonymous

Anonymous Sun 11 Jul 2021 20:05:54 No.13382706 Report

Quoted By:

>>13382675
>Thinking about speed in meters per second is more intuitive, and it would make doing work in science more intuitive.
Yeah, that's why meters per second is the SI unit for speed... I don't think many people are using (mi/hr) or (km/hr) in physics. Is it so hard to alternate between (m/s) and (km/hr) depending on the context?

Anonymous

Anonymous Sun 11 Jul 2021 20:10:04 No.13382716 Report

Quoted By:

>>13382687
The map is misleading because it only recognizes Metric and Imperial.
China, India, Taiwan and lots of other countries use a mix of Metric and local, traditional units.

Anonymous

Anonymous Sun 11 Jul 2021 20:18:21 No.13382732 Report

Quoted By: >>13382756

>>13382504
The practicality here is depending on the object
you're measuring, it's important to use the
appropriate units.

Cars and plane speed is best measured in mph
or kph because of the great distances they travel.
Nothing more practical than that.
Human walking speed can best be measured
in ft/sec or m/sec which provides greater
variability by scale than that of mph or kph,
which has little. Ultimately, you pick whatever
you want.

Do contemplate on this a bit, okay?

Anonymous

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Anonymous Sun 11 Jul 2021 20:28:30 No.13382747 Report

Quoted By:

>>13382687
The UK uses miles, stones, pints and a bunch of other imperial junk mixed in. Canada uses feet and inches to measure height, lbs for human weight, real estate is often in sq ft, and many things in the grocery store, especially produce, use imperial. Probably lots of other examples around the world of "metric" countries using lots of non-metric units of measure.

Anonymous

Anonymous Sun 11 Jul 2021 20:31:06 No.13382756 Report

Quoted By:

>>13382732
There aren't good speeds that should really be the goto for planes and definitely for space vehicles and planets. Blame it on the mentally retarded SI guys. Even the previous generation were smart enough to create AU.

Anonymous

Anonymous Sun 11 Jul 2021 20:36:50 No.13382766 Report

Quoted By:

>>13382687
Flight level is measured in feet in most of the world with the exception of China and the former USSR

Anonymous

Anonymous Sun 11 Jul 2021 21:07:52 No.13382856 Report

Quoted By:

>>13382675
>Google will tell you approximately how long it will take before you reach a destination
and you the human in the fucking car will see how long a mile after mile really are. also there are these things called highway markers. m/s is only easier to visualize if you're autistic, its not commonly used anywhere outside of precise measurements.
>Thinking about speed in meters per second is more intuitive, and it would make doing work in science more intuitive.
circular reasoning. seriously, you don't need m/s to become a standard in order to visualize it.

but literally all of this is besides the point of OP, hes saying it'd be easier to visualize long distances in smaller units?

oh yeah bro its way more intuitive to think about traveling 500,000m at 1,600 m/s than 500km at 100kph. let alone 300 miles at 60 miles per hour.

Anonymous

Anonymous Sun 11 Jul 2021 21:41:07 No.13382937 Report

Quoted By:

>>13382504
use small numbers always and long distances and meters don’t get along

the worst is measuring space object velocity in kph or mph, nobody can conceptualize a number that big. km/s or mi/s is understandable

Anonymous

Anonymous Mon 12 Jul 2021 08:22:37 No.13384298 Report

Quoted By:

>>13382675
Have you ever driven a car for more than 5 minutes?

Anonymous

Anonymous Mon 12 Jul 2021 08:45:41 No.13384330 Report

Quoted By:

>>13382504
Miles per hour comes from trains, which are usually traveling on the scale of miles so it makes sense.

ships and aircraft use knots because 1 knots = 1 nautical mile per hour and 1 nautical mile = 1 minute of latitude.

Anonymous

Anonymous Mon 12 Jul 2021 08:51:02 No.13384335 Report

Quoted By:

you do use those units in some cases, but when traveling terrestrial distances it makes it easier to stay within the same unit size. You measure distances between cities or such in miles or km, and so speed measured as miles or km per time works best.

Anonymous

Anonymous Mon 12 Jul 2021 09:02:32 No.13384351 Report

Quoted By:

>>13382504
I always assumed that it's because you're not visualising the speed but calculating how much distance you're going to cover at X velocity

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