What is balancing a centrifuge and why is it important? Why Balancing Your Laboratory Centrifuge Matters Out of balance loading causes the moving parts to shake uncontrollably. At best, this means the motor and bearings wear out more quickly. At worst, it risks sudden and explosive failure of the motor or rotor, and serious injury […]
What is normal oxygen level at high altitude?
What is normal oxygen level at high altitude? Up in Summit, oxygen saturation is around 92%. Visitors coming to Summit from sea level might see their oxygen saturation drop to around 88% or lower before reaching levels typical at this elevation. At what height is it hard to breathe? An elevation of about 20,000 feet […]
What are the 3 ways machines make work easier?
What are the 3 ways machines make work easier? Background Information. There are three ways simple machines make work easier: by increasing the distance through which force is applied, by changing the direction of applied force, or by multiplying force of speed of the energy applied. Why is no machine 100 efficient? A machine cannot […]
What can you use instead of a battery?
What can you use instead of a battery? Hydrogen fuel cells. Toyota is still plugging away with hydrogen fuel cell cars and it isn’t the only one working to find a solution. Lithium-sulfur. Graphene supercapacitors. Redox flow batteries. Aluminum-graphite batteries. Bioelectrochemical batteries. Solar panels. Powered roads. What should I do with dead batteries? Ordinary Batteries: […]
What is the difference between slip rings and split rings?
What is the difference between slip rings and split rings? What is the difference between a split-ring and a slip-ring commutator? A split-ring makes the current change direction every half-rotation, whereas a slip-ring commutator merely maintains a connection between the moving rotor and the stationary stator. Which device uses slip rings? Slip rings are used […]
Which ocean zone is the coldest?
Which ocean zone is the coldest? thermocline What are the five zones? The earth is divided into five distinct zones based on their climatic conditions, known as geographical zones. These zones are the North Frigid Zone, the North Temperate Zone, the Tropics, the South Frigid Zone, and the South Temperate Zone. What are the 5 […]
What is it called when glaciers move?
What is it called when glaciers move? A glacier might look like a solid block of ice, but it is actually moving very slowly. The glacier moves because pressure from the weight of the overlying ice causes it to deform and flow. Occasionally a glacier speeds up. This is called surging. What is the longest […]
Does gravitational force increase weight?
Does gravitational force increase weight? That is, the weight of an object is determined by the pull of gravity on it. Thus, an object’s physical weight may change from place to place: if a body weighs 54 kg on Earth, its weight will be just over 9 kg on the Moon, since the Earth’s gravitational […]