Post on 25-May-2015
Anveshapresents
SCIENCE QUIZ
REGULAR FARE
Caused by an extra chromosome attached to the 21st pair of chromosomes, ____ _________’s physical symptoms include a single crease across the palm, flattish facial features, and an upward slant to the eyes.Fill in the blanks
Answer:Down Syndrome
The first _____________________________ to be studied in detail was:
2 Sn2+ → Sn4+ + Sn
This was examined using tartrates by Johan Gadolin in 1788. In the Swedish version of his paper he called it 'söndring‘.
Answer:Disproportionation reaction
Find the next term in the sequence
5 9 18 43 92 ___
Answer:213
What term, in natural sciences, is used to describe a relationship between two living organisms where one benefits and the other is not significantly harmed or helped?(Hint: It derives from the Latin for ‘sharing a table’
Answer:Commensalism
If a,b,c are positive real numbers, what is the smallest possible value of[(a+b)/c] + [(b+c)/a] + [(c+a)/b]Where [.] is the greatest integer function.
Answer: [(a+b)/c] + [(b+c)/a] + [(c+a)/b] > (a+b)/c + (b+c)/a + (c+a)/b - 3
[(a+b)/c] + [(b+c)/a] + [(c+a)/b] > (a/b)+(b/a) + (b/c)+(c/b) + (c/a)+(a/c) - 3
A.M.- G.M. inequality gives RHS is > 2 + 2 + 2 – 3 > 3
Since LHS is an integer, the smallest possible value is 4.
A glass containing wine is swirled a bit and then held steady. The shadow of the glass is observed on a screen. As shown in the image the wine rises up to a certain height along the walls of the glass and then starts to trickle down again. This phenomenon is referred to as ‘tears of the wine’. Knowing that this wine has a 13.5% alcohol content and that alcohol is more volatile than water, how do you explain this phenomenon?
Answer:This is the Gibbs-Marangoni effect. Ethanol evaporates from the beverage where it is wetting the sides of the glass. In the absence of ethanol, the surface tension of the liquor on the sides increases, so it contracts to minimize the surface area. This in turn brings more ethanol-laden liquor to the top and starts to form ‘tears’. The tears form at the highest point, since there is less ethanol there. As the process continues, the tears become large enough that they roll down under their own weight.
TECH AND MORE
In context of computers, expand BSoD.
The Blue Screen of Death (also called BSoD, Blue Screen, or bluescreen), known officially as a Stop Error or a bug check, is the error screen displayed by the Microsoft Windows family of operating systems upon encountering a critical error, of a non-recoverable nature, that causes the system to "crash." The term is named after the color of the screen generated by the error. In UNIX-based operating systems, a similar term is kernel panic.
The number of transistors that can be placed inexpensively on an integrated circuit doubles approximately every two years. This trend has continued for more than half a century and is expected to continue until at least 2015 or 2020. What is this called?
Answer:Moore’s lawThe law is named after Intel co-founder Gordon E. Moore, who described the trend in his 1965 paper. The paper noted that the number of components in integrated circuits had doubled every year from the invention of the integrated circuit in 1958 until 1965 and predicted that the trend would continue "for at least ten years". His prediction has proved to be uncannily accurate, in part because the law is now used in the semiconductor industry to guide long-term planning and to set targets for research and development.
Someone asked him a question when he was sitting with logarithm tables lying before him, “Well, _______________, what are you dreaming about?” to which he replied “I am thinking that all these tables can be calculated by machine”. Who was this man?
(Clue: The whole conversation happened in the Analytical Society at Cambridge)
Answer:Charles Babbage
What were Project Memphis and Project Chicago?
Answer:The secret codes assigned to the development programmes of Windows 98 and Windows 95 respectively.
Answer:Dennis Ritchie
X was born on December 10, 1815 in Marylebone, London Growing up, X's mother tried to discourage her from becoming a poet like her father. Instead, she immersed X in mathematics, music, and science. Despite her studies, X's appreciation for the poetic was always underlying in her mathematics. She wrote to Charles Babbage in 1843 asking for assistance working with Bernoulli numbers. In her request, she wrote ""I want to put in something about Bernoulli's Numbers...as an example of how an implicit function may be worked out by the engine, without having been worked out by human head and hand." The result of this work was widely accepted as the first computer program.
She is the only woman ever to have a programming language named after her by the United States Department of Defense (DoD) in the 1970s.In 1998, the British Computer Society (BCS) awarded a medal in the name of X.
X’s face is used as hologram by Microsoft for authentification.
Answer:Lady Ada LovelaceProgramming language : ADA
MIXED BAG
What does the butterfly diagram display?
Answer:Sun spots
Many believe that the element Indium is named after India. What is the correct reason.
Answer:It is after the indigo lines appearing in the spectrum
Which animal has a name in summer and an entirely different name in winter?
Answer:Ermines. In winter when they have a white colour, they are called ‘Ermines’ and in summer when their coat changes its colour to brown they are called ‘Weasels’
An interesting one now. What is a Buridan’s Ass?
Answer:A situation in which an ass is given equally good two bundles of hay. He is so confused as to eat which one that he starves to death.
Answer:Mathematical Induction
He built the Uraneinborg (Fortress of the Heavens) observatory. He is said to have a nose of copper.
Who was this astronomer?
Answer:Tycho Brahe
TRIVIA !!!
Answer:Play chess
Answer:Snow flakes or snow crystals
Answer:Air bags in automobiles
Answer:Lev Landau
In a March 1999 correspondence with the magazine Nature, Thomas Fink and Yong Mao Cavendish Laboratory, Cambridge, investigated 85 of these and looked closely at four that are in widespread use. They also developed a mathematical model that mapped the 85 to random walks on a triangular lattice. What are these that many of us struggle with initially to get it right?
Answer:Necktie knots
Answer:Van de graaff generator
IMAGE ROUND
Name the group to which these men belonged.
Answer:‘The RNA TIE CLUB’George Gamow, Physicist, ALAAlexander Rich, Biochemist, ARGRichard Feynman, Theoretical Physicist, GLYEdward Teller, Physicist, LEUErwin Chargaff, Biochemist, LYSJames Watson, Biologist, PROHarold Gordon, Biologist, SERLeslie Orgel, Theoretical Chemist, THRFrancis Crick, Biologist, TYR
In the photo(from left to right):Francis Crick, Alexander Rich, Leslie E. Orgel, James Watson
Answer:IISER Bhopal !! ;)
Answer:
Answer:Robert Bunsen’s birthday
Which organization?
Answer:
Answer: