Drawing from the fields of astronomy, biology, chemistry, materials science, history, medicine and physics, Lee begins with hydrogen and works her way through the periodic table in order of increasing atomic number. "I'd encountered science poetry by other poets," says Lee in an email, "and...
How to Order a Concrete PumpOrdering a Boom Pump Are there overhead obstructions? Power lines (min. 20ft clearance) Trees Low clearance bridges/buildings (need 13’ 6” clearance) What size boom do you need? Is there safe access for the truck to get into the jobsite? The customer ass...
One of the earliest poetic works, the "Epic of Gilgamesh," dates back to around 2000 B.C., when it was part of the oral tradition of the Sumerians. Researchers think that this suggests that poetry and poetic styling was originally developed to help storytellers, who often acted as ...
In order to be able to displace the center of gravity by simple means in the transport state toward the direction or rear axle of the front axle (13) (18), according to the present invention, the drive piston in the transport state of the concrete pump (71, 81) are moved together to...
Nevertheless, it’s worth mentioning that the anti-pumping function of eithertrailer concrete pumps or concrete mixer pumps must be applied with caution. Due to the influence of the self-weight of the commercial concrete when the concrete pump is pumping vertically downward, the general reverse p...
manually moving the arm as the water level rises. You can also buy a manually operated pump, which works only when you decide to turn it on, but these aren't as common because of their lack of convenience. Automatic pumps also have an option for you to activate the pump if the float...
How a hydraulic scissor lift works by by DRHydraulics. This is quite a clear animation showing how a hydraulic pump makes a lift go up and down. It would be better if we could see a cutaway of the cylinder and how the fluid is flowing, but you get the idea.Articles...
This is how radiant floor heating works. Temperature throughout the room is more constant than with your standard forced-air system, where the air rises, cools and then falls to the floor. Aside from basking in consistent warmth from the floor to the ceiling, some people look for savings ...
To understand how hydroplaning works, you need to know how traction works.Tractionis the friction that builds up between the tires on a car and the pavement. Rolling traction is the interaction between the tire and the surface, which results in forward motion. When water coats that surface, ...
The first locomotives did this with a steam engine, which you can read more about in How Steam Technology Works. The steam locomotive lasted for about a century, but was eventually replaced by the diesel locomotive, a mighty mechanical wonder that may consist of a giant engine along with ...