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petrushka.googol

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Everything posted by petrushka.googol

  1. Functions return a value but it can be an array... Recursive functions can call the same function again eg. Fibonacci
  2. Through wind-tunnel simulations the outer skin of cars and aircraft are designed to be aerodynamically optimized, with low drag and smooth air flow.
  3. Refraction is responsible (which is caused by different speed of light in different (air / water) media).
  4. Resistors in series add impedance. I = V / (R1 + R2 + ..... RN) //From Ohm's Law
  5. The Earth's magnetic field is produced by a system of huge whirlwinds of molten metal in the outer core known as a "geodynamo". These vortices arise from a combination of two factors: convection, and the Coriolis force. Convection currents act as the basic pathways that the molten metals take, while the Coriolis effect causes the molten metal to spin and form into defined column-like structures, oriented on the same axis as the Earth's rotation. This process is called Dynamo Theory. In view of the above Mars has only a solid core that prevents the development of a global magnetosphere. (no differentiation into outer and inner core).
  6. I like the analogy of a capacitor with a dielectric. When the voltage reaches peak, the dielectric collapses and there is a spark. Similar to the trigger of spontaneous laughter.
  7. Do some self-pep talk like - It could have been worse I can change those things that are possible to change and choose to ignore things that I can't The very fact that improvements are possible translates into optimism
  8. As per his evaluation of needs self-actualization was at the top of the pyramid, and I give some weightage to that ....
  9. https://books.google.co.in/books?id=F21aBQAAQBAJ&pg=PA39&lpg=PA39&dq=does+sleep+restore+the+catecholamine+systems+of+the+brain&source=bl&ots=xjgvCl0aM3&sig=GO15vIc4nUFF3vRva6o34VL4vzU&hl=en&sa=X&ved=0ahUKEwjJ64y4n7XWAhVKM48KHf31CwcQ6AEILDAB#v=onepage&q=does sleep restore the catecholamine systems of the brain&f=false
  10. Grounding of nervous tension, something similar to a sigh of relief ....
  11. Sleep helps in restoring the equilibrium of catecholamine related neuronal systems of the brain.
  12. People of true character don't need to be deified, only inept individuals survive on flattery.
  13. Voltage fluctuations (without a stabilizer) can damage the computers hardware. Monitor problems are known to occur after 2 years or so. Malware and Viruses / Worms can corrupt memory and overwrite the BIOS. Computer FAN malfunction and overheating are more common with desktop machines and large servers. These are just a few scenarios that may occur.
  14. The expansion of the Universe could be described as "the time evolution of space". As an extension of this, the Universe could be described as "finite and unbounded".
  15. The Universe is not expanding (in the conventional sense), the space between galaxies is increasing leading to red-shift of distant galaxies.
  16. Google optimizes searches based on geographical locations. If you search for the same string in US or India, the results will be different (this is because google has different data centers for different geographies).
  17. AFAIK viewing a galaxy X from Earth that is significantly red-shifted would create the same "illusion" as the inverse observation. There are no absolute measurements in space only relative ones. Conservation of mass / energy / momentum apply here.
  18. AFAIK It is an algorithm that re-factors itself as new inputs and test cases are generated, and thereby makes itself more relevant.
  19. AFAIK an inflationary epoch requires a triggering event, which of course, is the BB. The Universe is undefined prior to the Planck time. That is all scientists are able to conjecture as of now, at least.
  20. Yes, it is ubiquitous and reminiscent of the pre-inflationary epoch.
  21. Having played chess on the Internet with players from nations as diverse as Mozambique and Iran, to cite an example, I can endorse the fact that a kind of telepathic consanguinity develops between the players, even if it is only ephemeral. This is a prelude to the actual thawing of ice between otherwise discordant individuals. Better building bridges than building walls (Newton said so....).
  22. adjective (of a person or action) creating or controlling a situation rather than just responding to it after it has happened. In the context of political conflicts and differences of opinion.
  23. Having a tete-a-tete over a cup of coffee and a game of chess seems more proactive.....
  24. Computers are beating humans in chess but the man-man contest still elicits interest. How about training our diplomats in chess and have negotiations over a board of 64 squares ? (I have heard of romantic associations being formed over the chess board.).
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