Talk:Orders of magnitude (speed)

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This is certainly false: "90 Speed of a Horse." Yann

As a peak speed, I don't think it's that far off: this page claims that the fastest runners can maintain an avererage speed of 72km/h over a mile, with standing start. AxelBoldt 19:49, 27 May 2005 (UTC)


I'm sure that the distance a snail could cover in an hour is closer to 20 cm than 2 cm so I think you're out by at least an order of magnitude, but probably more. Other web resources put the speed of a garden snail at around 0.0085 kph, which would mean they could cover about 8.5 m in an hour.

I fixed that using this as a source. --Vedranf 18:10, 17 December 2005 (UTC)

I think the following is wrong (or at least misleading): 70,220 252,792 Speed of the Helios 2 solar probe - Fastest man-made object. I have the 1991 edition of Guinness Book of World Records and it states that the fastest man-made 'solid visible object' was a plastic disc shot in 1980 by US naval research laboratory in Washington which reached a velocity of 150 km/s. It's not self-propelling, but it sure is faster than 70 km/s. - G3, 00:25, 1 February 2006 (UTC)

Doesn't a 1224 km/h speed of sound correspond to 340 m/s, not the 295 listed in the table?128.42.167.229 19:55, 3 February 2006 (UTC)

Contents

[edit] How about miles/hr equivalents?

What do people think about adding a column with MPH equivalents? Lots of other articles have all the figures in both metric and imperial units, so it seems particularly relavent to an article where the sole purpose is to provide comparisons. —Doug Bell talk•contrib 14:45, 5 April 2006 (UTC)

I agree 100% I have absolutely no idea how fast 130 km/h is, and I'd be willing to bet that a large protion of users viewing this page don't either. Johaen 19:01, 16 August 2006 (UTC)

[edit] m·s−1 and km·h−1

I suggest changing the representation of the units to m/s and km/h instead of using −1 for the time. This is an equally precise, and I think more natural, representation. —Doug Bell talk•contrib 18:44, 6 April 2006 (UTC)

I entirely agree, it took me a several minutes to work out that m·s−1 is the same as m/s. It wouldn't take away anything from the accuracy of the table to have m/s and km/h, and it would be Much easier to understand.--Hibernian 14:37, 16 August 2006 (UTC)

[edit] Hypervelocity

Would it be appropriate to link to Hypervelocity from one of the entries? Somewhere around StarDust? Shenme 03:54, 3 July 2006 (UTC)

[edit] snail

I noticed this: 0.0468 (m/s) 0.013 (km/h) Speed of a Garden snail [1].

Now the conversion is obviously wrong; it looks backwards. I don't know which is correct, but perhaps somebody who knows could edit it? Alex Klotz 19:53, 8 August 2006 (UTC)

Speed of garden snail now uses correct ratio of m/s to hm/h. Also, reference for speed is given. Az7997 18:41, 23 October 2006 (UTC)
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