mersenneforum.org  

Go Back   mersenneforum.org > Extra Stuff > Hobbies

Reply
 
Thread Tools
Old 2011-08-28, 15:22   #1
Flatlander
I quite division it
 
Flatlander's Avatar
 
"Chris"
Feb 2005
England

1000000111012 Posts
Default What to do about the false-start rule? (Athletics)

With Dwain Chambers and Usain Bolt both being disqualified at the World Athletics Championships, is there a better way of dealing with false starts?

Current rule:
Quote:
An athlete, after assuming a full and final set position, shall not commence his start until after receiving the report of the gun. If, in the judgement of the starter or recallers, he does so any earlier, it shall be deemed a false start. Except in combined events, any athlete responsible for a false start shall be disqualified
Suggestion:
Quote:
1 false start = kicks to the shins
2 false starts = shoelaces tied together
3 false starts = you're out
Flatlander is offline   Reply With Quote
Old 2011-08-28, 16:07   #2
science_man_88
 
science_man_88's Avatar
 
"Forget I exist"
Jul 2009
Dartmouth NS

8,461 Posts
Default

Quote:
Originally Posted by Flatlander View Post
With Dwain Chambers and Usain Bolt both being disqualified at the World Athletics Championships, is there a better way of dealing with false starts?

Current rule:


Suggestion:
make a fence in front that only comes down if the gun is fired ?
science_man_88 is offline   Reply With Quote
Old 2011-08-28, 17:21   #3
Brian-E
 
Brian-E's Avatar
 
"Brian"
Jul 2007
The Netherlands

CCE16 Posts
Default

Quote:
Originally Posted by science_man_88 View Post
make a fence in front that only comes down if the gun is fired ?
LOL. Why not have someone standing behind each athlete too to give them a swift prod in the midriff when the gun goes off like the jockeys do to the horses with their feet.

Seriously though, the new no-tolerance rule for false starts (immediate disqualification after only one) seems harsh to me. I read that it was put in place because some cheats were deliberately false starting in order to upset the opposition psychologically. But when hundredths of a second count and the athletes are on tenterhooks ready to start, I can imagine they might respond to the moment when they think the gun will sound rather than the moment when they actually hear it.
Brian-E is offline   Reply With Quote
Old 2011-08-28, 17:45   #4
science_man_88
 
science_man_88's Avatar
 
"Forget I exist"
Jul 2009
Dartmouth NS

8,461 Posts
Default

Quote:
Originally Posted by Brian-E View Post
LOL. Why not have someone standing behind each athlete too to give them a swift prod in the midriff when the gun goes off like the jockeys do to the horses with their feet.

Seriously though, the new no-tolerance rule for false starts (immediate disqualification after only one) seems harsh to me. I read that it was put in place because some cheats were deliberately false starting in order to upset the opposition psychologically. But when hundredths of a second count and the athletes are on tenterhooks ready to start, I can imagine they might respond to the moment when they think the gun will sound rather than the moment when they actually hear it.
my point is if they tried to false start or did they'd trip no need for the disqualification anymore they will learn quickly.
science_man_88 is offline   Reply With Quote
Old 2011-08-28, 19:17   #5
Xyzzy
 
Xyzzy's Avatar
 
Aug 2002

2×32×13×37 Posts
Default

In BMX racing, the start is everything. We use a gate that drops forward that is triggered by a random cadence signal within a 10 second (or so) window.

It works well. If you start too early you topple over and usually take a few others out. Peer pressure is effective here.

That said, why couldn't they run individually? Less than 10 seconds they are not saying to themselves, "Wow! I really need to catch up to that guy!"

Make it a time trial. Less exciting? Yes. How do you deal with differing wind speeds? Dunno.

FIX IT!

Xyzzy is offline   Reply With Quote
Old 2011-08-29, 02:55   #6
Christenson
 
Christenson's Avatar
 
Dec 2010
Monticello

70316 Posts
Default

Why not:
False start = disqualify, this event, first time
False start = disqualify this meet second time

That would make the guys very careful indeed. If you wanted to be more lenient, your clock for the race runs while you are out of the starting block if the starter holds, and you pay 1 second + 10x your lead of the gun if the starter fires, assessed after the race. Assessment is by high speed video and microphones at the starting line.


As for other sports, in drag racing, the lights count down in very precise cadence...so everyone knows EXACTLY when the "gun" goes off. How would a fair footrace start if one of the sprinters was deaf? The deaf guy can't hear the starter's gun, so he has to see it...30 or more milliseconds early...though it may take his visual system 80ms to process it.

Also, I'd like to point out that the "report of the starter's gun" travels at 1 foot per millisecond, more or less, so a sprinter closer to the gun has an advantage over the one furthest from the gun. And if the report happens to couple significantly to the nearby aluminum bleachers, that will leave part of the report propagating at around 10 feet per millisecond.
Christenson is offline   Reply With Quote
Old 2011-08-29, 03:23   #7
Uncwilly
6809 > 6502
 
Uncwilly's Avatar
 
"""""""""""""""""""
Aug 2003
101×103 Posts

2B3B16 Posts
Default

Quote:
Originally Posted by Christenson View Post
Also, I'd like to point out that the "report of the starter's gun" travels at 1 foot per millisecond, more or less, so a sprinter closer to the gun has an advantage over the one furthest from the gun. And if the report happens to couple significantly to the nearby aluminum bleachers, that will leave part of the report propagating at around 10 feet per millisecond.
Please note that at all major meets the 'gun' is electronically linked to the clock and speakers (right side of image) broadcast it to each runner at the same moment.
Attached Thumbnails
Click image for larger version

Name:	beijing-2008-sideview-starting-blocks.JPG
Views:	1032
Size:	20.0 KB
ID:	6936  
Uncwilly is online now   Reply With Quote
Old 2011-08-29, 21:05   #8
ewmayer
2ω=0
 
ewmayer's Avatar
 
Sep 2002
República de California

22·2,939 Posts
Default

Do it like in horse-racing: Have the runners in a (human-scale) paddock. In practice, a simple shin-level starting bar for each runner tied to the starting pistol would suffice. You go early, you skin your shins and fall on your face. More realistically, some kind of breakaway bar would not injure you but would slow you enough that you have no chance of winning. Problem solved.

Last fiddled with by ewmayer on 2011-08-29 at 21:05
ewmayer is offline   Reply With Quote
Old 2011-08-29, 23:37   #9
cheesehead
 
cheesehead's Avatar
 
"Richard B. Woods"
Aug 2002
Wisconsin USA

22×3×641 Posts
Default

Just go back to the previous rule (as I understand it): First false start is charged to the entire field, regardless of who committed it (a warning to the entire field). Thereafter, any false start = DQ the false-starting individual.

Last fiddled with by cheesehead on 2011-08-29 at 23:48
cheesehead is offline   Reply With Quote
Old 2011-08-30, 02:29   #10
davieddy
 
davieddy's Avatar
 
"Lucan"
Dec 2006
England

2×3×13×83 Posts
Default Watersports

In sailing, you are given warning of the start time.
The Blue Peter means five minutes to go.
A reliable stopwatch is necessary equipment (lifejacket used to
be optional).
A good start is often crucial, but if you are "over" the line at the
the start, you have to go back and start again.

In rowing (an eight say) a good start involves all 8 starting
simultaneously. One bloke "jumping the gun" would end up
in "catching a crab" at best.

Nauta Natat
(Elementary Eating)

Last fiddled with by davieddy on 2011-08-30 at 02:31
davieddy is offline   Reply With Quote
Reply



Similar Threads
Thread Thread Starter Forum Replies Last Post
A great universal divisibility rule JM Montolio A Miscellaneous Math 3 2018-02-27 16:11
Grammar rule-breaking ftw jasong Lounge 71 2013-10-15 03:39
Thumb rule for runtime prediction yoyo YAFU 3 2012-07-12 16:32
Rule for ECM curve and Factor? roger Factoring 1 2007-07-19 07:07
Rule for all galaxies. mfgoode Science & Technology 3 2007-03-20 06:02

All times are UTC. The time now is 04:11.


Fri Jul 7 04:11:53 UTC 2023 up 323 days, 1:40, 0 users, load averages: 1.45, 1.58, 1.41

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.

≠ ± ∓ ÷ × · − √ ‰ ⊗ ⊕ ⊖ ⊘ ⊙ ≤ ≥ ≦ ≧ ≨ ≩ ≺ ≻ ≼ ≽ ⊏ ⊐ ⊑ ⊒ ² ³ °
∠ ∟ ° ≅ ~ ‖ ⟂ ⫛
≡ ≜ ≈ ∝ ∞ ≪ ≫ ⌊⌋ ⌈⌉ ∘ ∏ ∐ ∑ ∧ ∨ ∩ ∪ ⨀ ⊕ ⊗ 𝖕 𝖖 𝖗 ⊲ ⊳
∅ ∖ ∁ ↦ ↣ ∩ ∪ ⊆ ⊂ ⊄ ⊊ ⊇ ⊃ ⊅ ⊋ ⊖ ∈ ∉ ∋ ∌ ℕ ℤ ℚ ℝ ℂ ℵ ℶ ℷ ℸ 𝓟
¬ ∨ ∧ ⊕ → ← ⇒ ⇐ ⇔ ∀ ∃ ∄ ∴ ∵ ⊤ ⊥ ⊢ ⊨ ⫤ ⊣ … ⋯ ⋮ ⋰ ⋱
∫ ∬ ∭ ∮ ∯ ∰ ∇ ∆ δ ∂ ℱ ℒ ℓ
𝛢𝛼 𝛣𝛽 𝛤𝛾 𝛥𝛿 𝛦𝜀𝜖 𝛧𝜁 𝛨𝜂 𝛩𝜃𝜗 𝛪𝜄 𝛫𝜅 𝛬𝜆 𝛭𝜇 𝛮𝜈 𝛯𝜉 𝛰𝜊 𝛱𝜋 𝛲𝜌 𝛴𝜎𝜍 𝛵𝜏 𝛶𝜐 𝛷𝜙𝜑 𝛸𝜒 𝛹𝜓 𝛺𝜔