20
votes
Accepted
What is the sports bra looking thing soccer players wear?
They are performance trackers. They track a player's vital statistics (heart rate, etc) as well as their movement, their average speed, their distance covered, etc. As for the "bra-like" ...
- 699
14
votes
Accepted
Are the gender differences in Olympic uniforms simply a style choice? Whose choice?
The precise rules for clothing are published by the international sport federations (FIVB for Beach Volleyball, FIG for gymnastics, FINA for Swimming etc.). Typically, they consist of
basic rules ...
- 2,233
14
votes
What is the sports bra looking thing soccer players wear?
GB11's answer summarized it well what are the tracking devices. From the YouTube page of GPSSports Systems you can see that what Zlatan wears is called GPSports SPI HPU tracking device, which ...
- 5,899
13
votes
How can I prevent football/soccer net theft?
In general, the "anti-vandal" or "anti-theft" refers to the goal frames themselves, rather than the nets; there's very little you can do if someone is actually out to vandalise the net with a big pair ...
- 24.7k
12
votes
Accepted
Usage of unusual characters in sports shirts
The FIFA equipment regulations mandate:
7.6 The letters used for the Player’s name must be (...) Latin characters. Phonological diaeresis, such as accents or umlauts, are permitted.
So the answer ...
- 2,233
11
votes
Are FIFA World Cup balls chargeable?
Yes, the balls do need charging for an internal energy source (i.e. a battery).
This battery is what powers some of the electronics and sensor equipment inside the ball, and of course the radio ...
Nij♦
- 8,202
10
votes
How can I prevent football/soccer net theft?
I can suggest you one of those three solutions:
use it without net except during official games, on these occasions you should assemble and dismantle the net with a consequent loss of time
add wheels ...
- 9,382
8
votes
Accepted
Why did baseball players start wearing gloves but cricket players not?
Regarding 1.
Why didn't cricket players ever start wearing gloves?
I focused on why baseball players began to wear gloves, because it is a much more answerable question, and can be used to ...
- 417
6
votes
Accepted
How do I make my table tennis paddle's rubber less sticky?
I realize this is an older question, but I think my answer might be useful to other people with the same or similar questions.
Anti-spin rubber can take the spinniest of serves and return it ...
- 346
6
votes
Accepted
Why do curlers have a stopwatch?
I think you are seeing them stop, not start the stopwatch. They are timing how long it takes from the back line to the first hog line. This time can be compared to previous throws to see if the rock ...
- 6,871
6
votes
How do I pick the right football size for my children?
US Soccer has a handy chart:
Above the ages in this chart, use size 5.
- 161
5
votes
How do the leading makes of red cricket ball vary in performance?
As far as red ball cricket (First Class, Tests - rarely List-A or T20) goes, SG, Duke (called "the cherry" informally due to smaller size and dark red color) and Kookaburra are the three widely used ...
- 151
5
votes
Dealing with excessive sweat in the hands while playing squash
I coach high school squash and run into this occasionally.
The most common thing players do is to wipe their hands along the sole of their shoe, much like you'll see basketball players doing ...
- 203
5
votes
Accepted
What is this training device used by Vasyl Lomachenko called?
It is a Sports Vision Trainer (SVT):
The SVTs come in different sizes and Lomachenko uses the smaller one with 32 lights.
They also have the picture of him using it on their website.
- 5,332
5
votes
Accepted
What are rifle specifications in Biathlon?
The rifles used are .22LR, a 130-year-old cartridge design that is the most sold type in the world, designated as the only acceptable round for Olympic shooting competition of any kind.
The rifles at ...
Nij♦
- 8,202
5
votes
Accepted
In Le Mans, what are the 3 lights on the side of the car?
These are apparently called "leader lights", and they indicate that the car is currently in the top three in its class. If you have one leader light on, you're currently 1st in your class; ...
- 4,031
5
votes
Accepted
In F1, which tyre to start on if the "fastest time"-tyre is damaged?
Drivers who make it through to Q3 start the race on the set of tyres that they used to set their fastest time in Q2.
All other divers have free choice of tyre compound to start the race on.
Formula 1 -...
- 201
5
votes
Accepted
What are these Badminton umpire equipment?
These are prosaically called Service Height Measuring Device.
From the laws of badminton:
§9.1.6 In a correct service, the whole shuttle shall be below 1.15 metres from the surface of the court at ...
- 2,233
4
votes
How many balls are used in a typical World Cup game?
This article from The Guardian says that:
In total 3,240 balls were used throughout the tournament (2014 FIFA
World Cup Brazil), 20 for each match
Generally, FIFA Laws of the Game Law 02 - The ...
- 5,899
4
votes
Why is the water in the pool at Rio 2016 green?
This was unintentional, and caused by the pH of the pool being "outside the usual range". Quoting from BBC News:
The International Swimming Federation (Fina) explained it was caused by water tanks ...
- 24.7k
4
votes
Why is the water in the pool at Rio 2016 green?
A third-party contractor used hydrogen peroxide to clean the pools. Hydrogen peroxide is a de-chlorination agent, it neutralizes the chlorine which is added to the water to prevent the growth of algae ...
- 531
4
votes
Accepted
What features should I look for in prescription eyewear for playing volleyball?
The most important feature are: a wide lateral vision (so bigger curved lens than normal glasses) and an excellent grip on the head.
I can suggest deformable plastic linked to an elastic to wear ...
- 9,382
4
votes
Accepted
Do NBA players earn from their jersey sales?
The NBA licenses its jersey sales through NBA Properties, inc., the licensing and marketing branch of the NBA. This private company negotiates deals with the various sportswear companies (such as ...
- 12.9k
4
votes
Do the type of cleats matter?
There are four main types of shoes that footballers commonly use.
Soft ground shoes consist of a small number of long studs (usually 6 - 8 ) that penetrate wet or loose soil / mud to provide traction....
- 7,454
4
votes
Accepted
What do the numbers on Mavis (Yonex) Badminton cocks mean?
YONEX offers 8 different plastic shuttlecock products, although availability may differ depending on what region/country you're in. Depending on the market, some products may also not be available in ...
- 2,233
4
votes
What is this training device used by Vasyl Lomachenko called?
While I can’t provide the specific name to the device you show, I can tell you that it has many uses, one of which is improving hand to eye coordination. A company called Dynavision makes a very ...
- 752
4
votes
Accepted
Is there a weight limit on darts, and what weight do professionals use, relative to such a limit?
From DARTS REGULATION AUTHORITY RULE BOOK:
GENERAL PLAYING RULES
5.1 Administration
5.1.1 Players shall provide their own darts which shall not exceed an overall maximum ...
- 6,514
4
votes
Accepted
Cleaning Oil/Grease on Felt Pool Table
Personally, I would forget cleaning and get the table reclothed. You may get the stains out, but the oils can damage the material in a way that can affect the playing surface.
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