Modern civilization loves to re-create nature. We have artificial light, artificial Christmas trees, artificial grass, artificial hearts and even artificial beaches! Curious as to how an artificial beach actually works? Take our quiz and get a behind-the-scenes glimpse at the workings of the giant wave pool "Thunder Bay" in Greensboro, North Carolina.
In the ocean, how are waves created?
through the magnetic pull below the earth's surface
through water pressure
What do you need to recreate a simple wave in a pool of water?
You need some means of creating a periodic disturbance.
You need a water pump or a hydraulic piston.
You need at least five gallons ( 19 liters) of water.
What is the name of the kid's wave pool at Emerald Pointe's water park?
The Ultimate Kid's Wave Pool
What does Splash Island use to generate a disturbance in the water?
a high speed fan
an oscillating plunger
a rotating paddle
What kind of valve is used inside the wide metal pipe at Splash Island?
a diaphragm valve
an hydraulic valve
a butterfly valve
What makes the butterfly valve rotate?
an hydraulic piston
an electric timer
Why can't Splash Island's wave generating system be used to create enormous, surfable waves?
Its system works only for pools of water that contain less than 1, 000 gallons (3, 785 liters ); you need more water than that in a large wave pool.
It can, it is just not cost effective.
It would require too large a force.
How many basic parts are there to a large wave pool?
What can the functioning of the giant wave pool, Thunder Bay, be compared to?
How is Thunder Bay kept sanitary?
It uses extra strength chlorine.
The water is changed daily.
The water is continually filtered.
How much water does Thunder Bay hold?
500,000 gallons (1.9 million liters)
1,000,000 gallons (3.8 million liters)
2,000,000 gallons (7.6 million liters)
What are the measurements of Thunder Bay's pool?
36 feet (11 meters) wide, 250 feet (76 meters) long
50 feet (15 meters) wide, 200 feet (61 meters) long
84 feet (26 meters) across, 400 feet (122 meters) long
How many water pumps does Thunder Bay have?
What is a valve seat?
the reservoir opening
the main part of the valve which prevents the water from releasing from the reservoir
the mechanism which pumps water into the reservoir
What plugs and unplugs the valve seat?
an hydraulic pump
a valve plate
the pump unit
What makes the valve plate move?
an hydraulic-cylinder piston
a motorized pump
the pressure from the water
Why is Thunder Bay's hydraulic piston fuelled by vegetable oil instead of regular machine oil?
Machine oil is water soluble, while vegetable oil is not.
There is a risk that some oil may leak into the pool water.
It is more cost effective when using such a large amount.
In a hydraulic piston, if the pressure is higher on the left side, in which direction will the piston move?
What is a solenoid?
a type of motor
an electromagnetic switch controlled by an electric current
What is so amazing about this wave generating system?