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Showing posts from May, 2015

Soapte

Eu, inima de imprumut Credeam ca totul e pierdut Si nu gaseam drumul catre soare Eu, care nu mai zburam In alb si negru visam Cand tu ai adus din nou culoare Credeam ca am mai iubit Dar de cand tu ai venit Parca e prima data Mainile tale aprind Focuri ce nu se mai sting Nu se mai sting vreodata Soapte, noi, singuri in noapte Nimic nu ne desparte Cu tine vreau sa fug departe Soapte, noi plutim in noapte Cu inimi dezlegate Iubirea noastra-i libertate Eu, care nu mai visam Cu aripi frante cadeam Si nu imi pasa daca ma doare Eu, doar un suflet pierdut Voiam un nou inceput Cand tu ai simtit a mea chemare Credeam ca am mai iubit Dar de cand tu ai venit Parca e prima data Mainile tale aprind Focuri ce nu se mai sting Nu se mai sting vreodata Soapte, noi, singuri in noapte Nimic nu ne desparte Cu tine vreau sa fug departe Soapte, noi plutim in noapte Cu inimi dezlegate Iubirea noastra-i libertate Cand ma atingi, se aprinde cate o stea Tu desenezi curcubee pe pielea m...

Wild Horses

Bad girls and the good boys That's me and you Two hearts, different worlds, That's me and you Oh oh oh, I keep trying Oh oh oh, if you're trying along Oh oh oh, I'm trying to tell you Let it go, I think you'd better Beware of those wild horses Some hearts, they can't be tamed, can't be tamed Go ahead and build your fences Somehow I still escape, still escape In the night, we are racing hearts In the light, we are miles apart Beware of those wild horses You'll watch them ride away, ride away, ey Our love you can't control, That's me, and you Young love trying to be old That's me, and you Oh oh oh, I keep trying Oh oh oh, if you're trying along Oh oh oh, I'm trying to tell you Let it go, I think you'd better Beware of those wild horses Some hearts, they can't be tamed, can't be tamed Go ahead and build your fences Somehow I still escape, still escape In the night, we are racing hearts In the light, we are miles apart Bewar...

SUPERCAPACITORS

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SUPERCAPACITORS A supercapacitor (SC) (sometimes ultracapacitor, formerly electric double-layer capacitor (EDLC)) is a high-capacity  electrochemical capacitor  with capacitance values up to 10,000  farads  at 1.2 volt that bridge the gap between  electrolytic capacitors  and  rechargeable batteries . They typically store 10 to 100 times more  energy per unit volume or mass  than electrolytic capacitors, can  accept and deliver charge  much faster than batteries, and tolerate many more charge and discharge cycles than  rechargeable batteries . They are however 10 times larger than conventional batteries for a given charge. Supercapacitors are used in applications requiring many rapid charge/discharge cycles rather than long term compact energy storage: within cars, buses, trains, cranes and elevators, where they are used for  regenerative braking , short-term energy storage or burst-mode powe...

How does 4-Terminal transistors work?

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4 FOUR TERMINAL SENSING Four-terminal sensing   (4T sensing),   4-wire sensing, or   4-point probes method   is an   electrical impedance   measuring technique that uses separate pairs of   current -carrying and   voltage -sensing electrodes to make more accurate measurements than the simpler and more usual two-terminal (2T) sensing. Four-terminal sensing is used in some   ohmmeters   and   impedance analyzers , and in wiring for   strain gauges   and   resistance thermometers . Four-point probes are also used to measure   sheet resistance   of   thin films . Separation of current and voltage electrodes eliminates the lead and   contact resistance   from the measurement. This is an advantage for precise measurement of low resistance values. For example, an   LCR bridge   instruction manual recommends the four-terminal technique for accurate measurement of resistance below 100 o...

CAN COMPUTERS GENERATE RANDOM NUMBERS?????/?

“One thing that traditional computer systems aren’t good at is coin flipping,” says  Steve Ward , Professor of Computer Science and Engineering at MIT’s Computer Science and Artificial Intelligence Laboratory. “They’re deterministic, which means that if you ask the same question you’ll get the same answer every time. In fact, such machines are specifically and carefully programmed to eliminate  randomness in results. They do this by following rules and relying on algorithms when they compute.” You can program a machine to generate what can be called “random” numbers, but the machine is always at the mercy of its programming. “On a completely deterministic machine you can’t generate anything you could really call a random sequence of numbers,” says Ward, “because the machine is following the same algorithm to generate them. Typically, that means it starts with a common ‘seed’ number and then follows a pattern.” The results may be sufficiently complex to make the pattern dif...

CAN COMPUTERS GENERATE RANDOM NUMBERS????

There are two ways that computers can generate random numbers: You can create some sort of device that monitors a completely random natural event and sends its results to the computer. For example, you could place a piece of  radioactive material  in front of a Geiger counter and connect the Geiger counter to a computer. Since  radioactive decay  is random, the Geiger counter would create truly random numbers. This approach is pretty rare, because not many people have Geiger counters connected to their machines. You can create a formula that generates a  pseudo-random  number. When designing the formula, the idea is for it to produce a string of numbers that would look random to anyone who did not know what the formula is. Characteristics of a good formula include: ·          No repetition : The sequence does not cycle around and repeat itself.  Good numeric distribution : If the formula is producing random...

HOW DOES A COMPUTER GENERATE RANDOM NUMBERS???

   A   random number generator   ( RNG ) is a   computational   or physical device designed to generate a sequence of   numbers   or symbols that lack any pattern, i.e. appear   random . The many   applications of randomness   have led to the development of several different methods for generating   random   data. Many of these have existed since ancient times, including   dice ,   coin flipping , the   shuffling   of   playing cards , the use of   yarrow   stalks (by divination) in the   I Ching , and many other techniques. Because of the mechanical nature of these techniques, generating large numbers of sufficiently random numbers (important in statistics) required a lot of work and/or time. Thus, results would sometimes be collected and distributed as   random number tables . Nowadays, after the advent of computational random number generators, a growing number of governm...