Q.no.1: What’s the Color of the Mirror?
Answer :
Short Answer: Green
Explanation: Humans can differentiate 10 million different colors, but it’s hard to imagine the mirror is not white or silver. It is the color of whatever is reflected onto it. The perfect mirror reflects all images in the exact opposite direction (angle of reflection) and distance. So the color of the mirror would be kind of smart white.
But, we live in a real world where there is no perfect mirror. Every real mirror absorbs a very tiny amount of light. In particular, it best reflects light within the 510-nanometer range, which is the spectrum of visible green light. So technically, your mirror is titchy green.
Q.no.2: How Much Of Our Brain Do We Use?
Answer :
Short Answer: 100%
Explanation: It has been misattributed to many people (including Albert Einstein) that we only use 10% of our brains. This myth originated in the 1890s by the father of American psychology, William James. He said, “most of us do not meet our mental potential” and this misunderstanding stuck for a long time.
The truth is, that we use virtually every part of the brain, and most of the part is active all the time. In fact, during sleep, all parts of your brain remain active. Indeed, every part of the brain is not concurrently active at any given moment. For the maximum efficiency and to be conscious at all, 1 to 16% of the cell should be active. Furthermore, most of the cells are used to control unconscious activities such as heart rate, dreaming, etc.
The human brain requires 20% (more than any other organ) of the body’s energy; in children, that figure is 50%, and in infants, it is 60%. It contains more neurons (around 86 billion) than any other species, and this dense neuron packing is what makes us so smart.
Q.no.3: Where Do Permanently Deleted Files Go In Computers?
Answer :
Short Answer: Nowhere, it is still there.
Explanation: Do they just wipe out, do they go off somewhere where you can never get them back, or do they send it to the President. Well, the answer is your computer doesn’t delete anything, they are right there on your hard disk.
When you delete a file, you just change a pointer to the new address on your hard disk. Pointers are a special type of data that points to the location (Track/Cylinder/Sector of the hard drive) where the actual file is stored. Large files are usually stored in multiple locations. When you open a file, the hard drive follows the pointer to present the data.
The file is never erased; it is present physically on your hard disk. But the address where the file is located is made available for the next read/write operation.
You can get those files back using special software unless the location has been overwritten. Although, overwriting doesn’t guarantee that your files are gone forever. Organized criminals in Ghana have managed to recover confidential data from dumped electronic wastes. So if you are working for any secret agency, it’s better to destroy your hard disk rather than throw it away.
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