This Beijing Winter Olympics has indeed made many netizens start to pay attention to ice and snow sports, and everyone has also learned a lot of small knowledge of the Winter Olympics. So do you know how the ice surface of the national speed skating hall track was quickly repaired?
We can see from the TV broadcast that whether it is a speed skating track or a figure skating ice surface, there are often people who go to repair the ice and repair the ice surface, which does not seem complicated, and it is often done by two people working together. Sports such as short track speed skating and figure skating require quick repair of the ice surface. The NBA basketball hall is dedicated to mopping the floor with a mop to prevent players from slipping and avoid injury.
In the ice games of the Winter Olympics, whenever there is a gap between matches, we see a staff member carrying a bucket and quickly sliding into the field. Take a spatula-like tool out of the bucket, shovel some mixture of ice slag and water onto the ice, and then use that smear to smooth it out like a scraper, and then there will be other staff members carrying something like a fire extinguisher and spraying it on the place where it was just wiped, and then other staff members holding something like a scraper, scraping the place flat and scraping away the excess ice at the same time.
In fact, the actions of these workers are repairing the broken ice surface. The person carrying the bucket is filled with warm water and crushed ice, holding a fire extinguisher is spewing out dry ice gas, holding a similar scraper is smoothing the ice surface, and there is a professional ice maker in the stadium, whose task is to arrange the ice surface in the stadium. If the inspection reveals depressions and bumps in the track, the icemaker will use ice to fill these depressions, and then use an ice knife to scrape up and down the surface of the ice to trim.
Although it seems that there is no technical content, it should also be technical work, and a good bricklayer can smooth the ground, which is similar. An ice runner needs to repair the ice surface after a race, such as 500 meters, 1000 meters or 1500 meters. However, after a group of races, it is manually repaired to find small potholes in the inflection and exit curves, repaired with water and dry ice, generally after a race, the time is generous, and the whole field ice is only watered if there is not enough time to water the runway.