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Showing posts from July, 2020

Bio-Mimetics - Hibernation

In many space films like interstellar , passenger; when the destination is so long they use a hibernation pod. What is hibernation pod: Hibernation pod is a container like structure where the temperature kept below and reduced oxygen supply to slow down the metabolism of our body (cryosleep) human observed many animals like bear lives in artic region and wood frog and frogs lives in a  cold area. These are cold blooded animals so their body temperature is dependent on the surrounding during winter the temperature falls -3°c or even lesser so to prevent from cold frogs use this hibernation techniques by resting them from even their body freezes but blood flow will remain Keep on flowing heart beat slows down lungs stops breathing when the  winter gone they come back to normal. We should have to know how wonderful these things, they are nature's gift we are not only the species in the earth we are one of the species in the earth we have to think about climate change this

Habitable planet found next to our star system

A habitable planet found  near our star system around 4.2 light year apart, a star system called Alpha centauri system. This system has 3 stars namely Alpha centauri-A , Alpha centauri- B  and Alpha centauri- C or proxima centauri Alpha A- B are twin stars and proxima centauri is dwarf star a planet revolves it called proxima centauri- B, this planet lies in habitable zone and yet it has a possibility for life but this planet is 4.2 light years away even it is the closest star to earth but the distance is high 24 trillion miles away How far it is For Example If we travel to proxima-B with the help of NASA voyager 1 spacecraft which is moving at a speed of 38,000 miles per hour it will take 70,000 years to reach this planet is close to its star probably it has a chance of tidal locking which means one side of the planet face is always day and another side dark night always there is no day night cycles the habitable zone in the planet is at the Twilight zone where the

From point to line to square to cube to tesseract

Tesseract is a four space dimensions start from point a one dimension with no direction And if we move forward we get a line (one dimension) and further from the point if we move in a perpendicular direction we a square (two dimension) further in perpendicular we get a (3 dimension ) cube The cube has 6 faces they are square if we extend this square face from 2d- 3d we can get a tesseract. Interstellar tesseract representation The above image shows the representation of tesseract in the movie interstellar This tesseract has the capable of access space time.

How to calculate age of tree using ring without cutting

 How to calculate age of  tree using ring without cutting The rings in the trees are used to calculating the age of the trees and tells what the weather was like during each year of the tree’s life. The light-colored rings represent wood that grew in the spring and early summer, while the dark rings represent wood that grew in the late summer and fall. One light ring plus one dark ring equals one year of the tree’s life. The color and width of tree rings can provide snapshots of past climate conditions. For example, tree rings usually grow wider in warm, wet years and they are thinner in years when it is cold and dry. If the tree has experienced stressful conditions, such as a drought, the tree might hardly grow at all in those years Calculating the age of the tree without cutting The age of the tree can be calculated without cutting the tree with the help of an instrument called Increment borer this instrument is bored into the tree up to the centre and collect t

Ciphertext

Ciphertext It a form of encoded text it also known as cryptographic text it is a form encrypting the text or sort of information intially  the set of text has been encoded for private communication How it's work  The information to encrypt are base information it is encoded using the largest prime number and it as been send to the receiver Inbetween hacker can receive the encrypted data but the can't able to decrypt the data only receiver have the key of the encrypted data Decryption is done by the receiver device

Betelgeuse - A Stellar Mystery

Betelgeuse - A Stellar Mystery Orion's giant orange star Betelgeuse  and one of the largest known stars in the night sky—is at the left shoulder of Orion. You can find it by getting to know all the stars in the Orion, or by locating Orion's Belt, which will be almost vertical in the night sky as its gets dark. Mystery  : Last year December Betelgeuse brightness is slowly reduce is almost dimmer than the 20th bright star. Scientists are expecting that it is gonna be a supernova because it is massive about 20 times bigger than our sun. If sun is replaced by Betelgeuse it will swallow Mercury Venus Earth and Mars and it will roast  Jupiter and Saturn If the supernova happens it would be the closer to our solar system but it doesn't affect earth because it 650 light years away but we can see the supernova seem bright light in the sky it  can be seen through naked eye if it happens. But the twist is Betelgeuse brightness become normal after few weeks scientists find

What makes the Hammer strong

What makes the Hammer strong Usually Hammers are made of steel but the same steel is used every where but in hammer the strength is more. The reason is hammer is made by the process called drop forging process In this process a heated steel billet is placed on a lower die mould block, while an overhead, die-equipped ram hammer drives or “drops” down, forcing the metal to fill the contours of the two die blocks. Forging on a drop hammer is carried out in a succession of die impressions using repeated blows. Which results in good grain flow of material and good strength is obtained with less wastage of material.

Dhoni and Marvel hero's comparison

Dhoni and Marvel hero's comparison When it comes to press conference: Tony and dhoni both are sarcastic in nature their speeches always attracts  us and sometimes funny they easily answer the  critical questions in press conference When it comes to leading the team: Both caps are cool and composed during the battel they doesn't interfere anything run in their mind leading the team in a cool manner. When it comes to fighting: Thor and Dhoni are strong when it comes to action they are strong bottom one with a hammer and  one with bat

Can wormholes exists naturally, as astrophysical object

Can wormholes exists naturally, as astrophysical object The wormhole theory postulates that a theoretical passage through space-time could create shortcuts for long journeys across the universe. Wormholes are predicted by the theory of general relativity. Can wormhole naturally exist: Naturally wormhole are extremely unlikely they exist, We see no objects in our universe that could become a wormhole many stars that form as a blackhole when it runs out of fuel There is a very tiny hope  that wormhole exist naturally in submicroscopic scale in the form of Quantum foam. The foam is hypothesis network of wormhole continually fluctuating in and out of existence in a manner it is governed by the law of quantum gravity The foam is very tiny in length about Planck length.

Why Worm gears are not reversible

Why Worm gears are not reversible Worm gears are used in speed reducer  this drive has a worm(driving Shaft) and a worm wheel (driven wheel) The speed reduction ratio is about 300:3 rpm Why it is not reversible: Worm gear has more contact area than any other gears so it has more friction so it has been used as self locking mechanism. Due to this more friction worm gears are not reversible.

Bio-Mimetics -Bat

Bio-Mimetics -Bat SONAR system was inspired from bats. Bats use Echolocation to move and hunt it's prey by emitting a sound about the frequency of 9-200kHz humans have the range about 20-20kHz sometimes bats crips are able to listen by human. A boy designed a new SONAR based walking stick for blind people this  Sonar stick are able to find out object near the stick to  detect any presents

Why computer mouse have red LED light?

Why computer mouse have red LED light? A computer mouse is a optical mouse, which uses a light source, typically a light-emiting-diode, and a light detector, such as an array of photodiodes, to detect movement relative to a surface.Variations of the optiocal mouse have largely replaced the older mechanical mouse design, which uses moving parts to sense motion.But why red is mostly used, simple as red diodes are inexpensive and silicon photodetectors are very sensitive to red light.