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 […]
What is balancing a centrifuge and why is it important?
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 […]
How many reps of strength training should one complete for general fitness goals?
How many reps of strength training should one complete for general fitness goals? 15 repetitions Do push ups kill your gains? PUSHUPS ARE KILLING YOUR GAINS! Put simply, the standard pushup has the potential to be one of the best body weight upper body exercises for chest, shoulder, arms and even core strength! You will […]
What keeps the sun from exploding?
What keeps the sun from exploding? The inward pressure that keeps a star from exploding is the gravitational attraction of the gas mantle surrounding the core (which is most of the volume of the Sun, and is very hot but does not burn itself). Why does the sun not explode like a hydrogen bomb? The […]
What is the role of carbon dioxide in photosynthesis and in cellular respiration?
What is the role of carbon dioxide in photosynthesis and in cellular respiration? Photosynthesis makes the glucose that is used in cellular respiration to make ATP. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other […]
Where is the origin of electricity?
Where is the origin of electricity? This word comes from the Greek word elektron which means amber. Earlier, electricity generation began over 100 years ago, houses were lit with kerosene lamps, food was chilled in iceboxes, and rooms were warmed by wood-burning or coal-burning stoves. Who gave electricity its name? Benjamin Franklin Who was Tesla […]
Why is potential energy negative in an atom?
Why is potential energy negative in an atom? When a stable atom is formed, the electron is attracted to the nucleus, r is less than infinity, and the energy will be negative. A negative value for the energy implies that energy must be supplied to the system if the electron is to overcome the attractive […]
What is full form of SI unit?
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Why electric flux is zero in a closed surface?
Why electric flux is zero in a closed surface? If there is no net charge within a closed surface, every field line directed into the surface continues through the interior and is directed outward elsewhere on the surface. The negative flux just equals in magnitude the positive flux, so that the net, or total, electric […]