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13y ago

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When was the fountain pen invented and what does it look like?

it was invented by LMFAO and Lil Wayne(: They were madly in love so they made it look like a heart<3


Can you put your dlp flat screen tv on your porch?

That's Highly impossible....... I doubt that you can even fit a flat screen T.V. on a porch, in less your rich! :] which your not rich! .....i am! rich... sucker! haha... sucks 2 be you!...i did say somthing els but lil 2 M_an


What is the difference between a geometric constraint and a numetric constraint?

Dealing with engineering or CAD, a geometric constraint deals with constraints such as parallel or perpendicularity. A numeric constraint deals with distances and size. Width, length, and depth are examples of these.--------Geometric constraints are constant, non-numerical relationships between the parts of a geometric figure. Numeric constraints are number values, or What_is_the_difference_between_a_geometric_constraint_and_a_numeric_constraintequations that are used to control the size or location of a geometric figure :)


Why will an ice cube placed in a cup of hot rotating water spin automatically faster than the water itself?

the center of a whirlpool is spinning the fastest. the cube is in the center so its spinning equal or a lil slower than the water directly under it but the water neer the edge of the cup is spinning slower.....put something in the toilet, flush it and observe how it spins faster as it reaches the center...........use something that wont clog the toilet


WHY It is easy to convert an AC to a higher or a lower voltage with transformers?

AC current is constantly alternating between moving back and forwards, this maintains a changing electromagnetic field around it. This principle is used to power a AC transformer, which is made of very simple materials (copper wire and a lil bit of iron usually) and has no moving parts. DC current is moving all in the same direction. This creates a static field as no change is occurring. Transformers rely heavily on that changing magnetic field to carry out induction and change voltages, DC power was historically put through a commutator or later an Interrupter to create movement in the magnetic field. A commutator is the active element in little electric motors that makes them spin and an interrupter is similar to those old school morse code devices that pulses (switches on and off rapidly) the DC signal to create a field travelling up and down. Once the filed has some movement in it, it was sent into an AC transformer and then converted back. The process has evolved since then, but is still reliant on a changing magnetic field.