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Masonry
Masonry in the building of structures using mortar to piece together different materials, such as marble, concrete blocks, or bricks.
598 Questions
Is High temp in swimming pool safe?
According to the British Swimming Association on hypo- and hyperthermia, physical exertion and water temperature, it is indicated that a swimmer is unlikely to suffer heat stroke in water at 37°C (98.6°F). This suggests facilities with leisure pools should be able to operate legally and safely as high as this water temperature to meet the needs of their patrons.
per
http://www.health.gov.bc.ca/protect/pdf/bc-pool-operations-guidelines.pdfWater draws body heat very quickly if it is too low and it can raise your core temperature of 37°C or 98.6°Fifthe water temperatureis lower or higher than 35°C or 95°F. It is all related to how long you are in the pool and your level of activity, though.
The official Olympic standard for a competitive swimming pool is 25--28 °C (77--82.4 °F).
Remember, the human body generates significant extra heat while exercising, and it needs to shed this extra heat in order to keep the core body temperature at a stable 37°C (98.6°F). Normally, humans sweat, and use the air temperature difference around them to evaporate sweat (an endothermic reaction) and remove excess heat. When swimming, humans still sweat, but cannot evaporate this sweat while underwater. Rather, they have to rely on the conductive heating of the water next to the skin to remove heat, which is much less efficient than the evaporation process. Normally your skin temperature is 33
°C or 91.4
°F.According to Health Canada:
http://www.hc-sc.gc.ca/ewh-semt/pubs/water-eau/guide water-2012-guide eau/index-eng.php#a812
"Thermal neutrality in water is reported to occur at 35°C. Below this value, the human body is expected to lose more heat than it is capable of producing."
The reason behind all this is the process that humans use to cool themselves in air is very different than underwater. Air allows for differences in relative humidity to aid evaporation of sweat across a large range of temperatures. However, air has poor conductive heat transfer properties, so if a human ceases to sweat, they can stand quite low temperatures without problem. In the obverse, very high temperatures can be withstood if the humidity is low enough to allow for evaporation of sweat. Note that the most threatening situation for a exercising human in air is whenever the relative humidity approaches 100% regardless of the actual air temperature. When submersed in water, which is a very good heat conductor, but does not allow for sweat evaporation (evaporation being 5-10x more effective at dispersing heat), the human body loses its ability to control heat loss. So long as the body remains submerged, the amount of heat lost is relative the absolute temperature of the water. Thus, there is a relatively small range of temperatures where the amount of heat loss due to conductive heating is roughly equal to the "excess" heat exercise produces. Water hotter than this range means that the body can do nothing to increase heat loss, and overheats quickly. Water lower than this optimal range means that heat loss will continue no matter what the body does, and only accelerates when exercise stops.
A competitive swimmer states: "Much of my life, I've swam continuously for several hours in water as low as 75° F, and swam in competition in 70 F water, but neither was pleasant, and adversely impacted my performance (cramping came much faster). I've also swam in 85° F water, which quickly became tiring as I overheated fast, and have seen fellow swimmers pass out after having to compete in excessively hot pools (above 85° F). Pools which are kept at the mid-80s F to make it pleasant for casual bathers ARE NOT suitable for exercising in.
A good measure of whether a pool is good to exercise in is this: when you first jump in (jump in, don't walk in), the water feels quite cold, and you shiver a fair amount. However, after about 2 minutes of treading water, it should feel only a bit chilly. This chilly feel will go away quickly once you begin swimming, and it will keep you from overheating.
Also, one last caveat - when exercising in a pool (not swimming, but performing aerobic exercises), STAY FULLY SUBMERGED (except for your head). DO NOT stand half-in and half-out of the water. The different heat-removal abilities of water and air make it extremely difficult for you body to regulate its heat properly if you are only partially submerged."
What is a swimming pool measured in?
The newer the pool, the higher the chance that it's measured in meters. Proffesional or school swimming pools are measured in yards or meters. The newer the pool, the higher the chance that it's measured in meters. Proffesional or school swimming pools are measured in yards or meters.
Swimming pool suction is too strong?
Doesn't really sound like a question. But your swimming pool suction is determined by the size of your pump. There are other factors like the pipe distance and diameter, but it basically comes down to the size of your pump.
Is there a swimming pool at flamingo land?
If your staying in a Caravan or a tent then a swimming pool is available but if your just visiting there isn't
What are dimensions of competition swimming pool?
There are two different sizes when it comes to competition swimming pools. There is a short course, and a long course pool. The dimensions for the short course pool is 25 meters by 25 meters. However, the width can change depending on the number of lanes that the pool has. A long course pool has dimensions of 50 meters by 25 meters.
Is a vacuole like a swimming pool?
Both yes and no. No because it is much larger. Yes because they can both b filled with water.
What exactly does fiberglass swimming pool mean?
The in-ground pools are prefabricated. The bodies are made of fiberglass-reinforced plastic. This is an alternative to vinyl-lined, gunite and poured concrete pools.
Could swallowing salt water from a swimming pool cause vomiting?
it depends how much you drink...like if you drank a gallon of salt water, yes you would puke your guts out
Why add hydrochloric acid to swimming pool?
Reduces alkalinity of swimming pool water (softens hard water)
Can humans get little red worms from swimming pool?
Oh, my goodness. I'm a social worker and not a physician. If you are the one with the worms, stop asking questions and get you your physician right away. If the little visitors are living with a friend, tell you friend to get to a physician immediately. Who cares where they came from? Get rid of them!
William Shakespeare was not a bricklayer that we know of. There is a long period in his life when we do not know what he did, so during this time he might have worked at the building trades. However it is not likely since, first, bricklaying is an exacting trade requiring years of practice and, second, brickwork was not a common method of construction in Elizabethan England.
Find Swimming pool surface area?
For rectangular pools, multiply the length times the width. For other regular shapes use formulas for the appropriate geometry. For irregular shapes, the simplest way is to draw the shape on paper and use a planimeter to determine the area. If you are clever, you can use a tracing of the shape and a good balance to determine the surface area.
How much does a union bricklayer make in PA?
it depends on which contract they are under. they make anywhere from 25-40 dollars per hour.
4 bricks each side per layer times 2 sides plus 3 bricks per layer front and back equals 14 bricks per layer. (4+4+3+3)=14 .
Then multiply each brick layer times 4 for each foot high times 3 for 3 feet high equals 12 layers high.(4 bricks high per foot times 3 feet high=12 bricks high.)
So 14 times 12 equals 294 bricks. I you add a cap stone(3 inches high by about 28 inches square) then you can subtract 1 layer of bricks) and secure the mail box. This assumes no space for mortar between bricks. Adjust as necessary. (14x12)=294. The space inside the brick structure will be 1.5 ft x 1.5 ft x 3 ft high = 6.75 cu ft.
Answer: 294 bricks or 280 plus the cap stone. 4 bricks each side per layer times 2 sides plus 3 bricks per layer front and back equals 14 bricks per layer. (4+4+3+3)=14 .
Then multiply each brick layer times 4 for each foot high times 3 for 3 feet high equals 12 layers high.(4 bricks high per foot times 3 feet high=12 bricks high.)
So 14 times 12 equals 294 bricks. If you add a cap stone(3 inches high by about 28 inches square) then you can subtract 1 layer of bricks) and secure the mail box. This assumes no space for mortar between bricks. Adjust as necessary. (14x12)=294. The space inside the brick structure will be 1.5 ft x 1.5 ft x 3 ft high = 6.75 cu ft. Fill with whatever you want or leave open. If you want the structure solid then each layer would need to contain 48 bricks times 12 layers or 576 bricks with no capstone.
Answer: 294 bricks or 280 plus the cap stone. If solid, 576 bricks with no cap stone. 528 with a capstone replacing one layer
How much does 1 cubic yard of concrete weigh?
This can vary do to the mixture of sand, stone, cement... but an approximate average would be 3000 lbs
Why does Grant fight the two mulatto bricklayers?
Grant fights with they two mulatto bricklayers because the where talking about Jefferson and how they should have killed him sooner.
Why do bricklayers company use gloves when working?
When handling brick, stone or concrete blocks the surfaces are rough and can/do cause skin damage. Add to this the lime in cement and you have potential for demititous and/or hardening of the skin. Gloves reduce this and save the hands from continued damage.. Beside may "brickies" working out side will tell you, in the winter its even harder to hold the trowel when your fingers are turning blue and you cannot feel the tips of the fingers lifting the bricks etc
nursing
- Brick masonry
- Stone masonry
- Ashlar masonry
- Random rubble masonry
The ancient Hebrews invented masonry to make a perfect world with the followers of Jesus christ during the roman occupation, and the third crusade.
