Key points of online Education

Blog credits Parthasarathi Dividewar Year : finished 1st yr going to 2nd now…Branch : Civil engineering College : NITW

DUE TO THE PANDEMIC (COVID-19) THE EDUCATION SYSTEM HAS TAKEN ANOTHER ALTERNATIVE SO THAT STUDENTS SHOULDN’T STEP BACK IN THEIR ACADEMICS. BUT THERE ARE PROS AND CONS BECAUSE OF ONLINE EDUCATION. LETS LOOK INTO THIS.

PROS :

• STUDENTS MAY NOT LAG IN THEIR ACADEMICS.
• THEY CAN LEARN MANY THINGS FROM ONLINE APART FROM SUBJECTS.
• THEY WILL BE SAFE FROM THE PANDEMIC (COVID-19).
• WE CAN LISTEN TO OUR CLASSES FROM ANYWHERE.
• EVERY STUDENT CAN IMPROVE THEIR TECHNICAL SKILLS.
  CONS :
• THEY DON’T HAVE A HEALTHY ENVIRONMENT COMPARED TO SCHOOL ENVIRONMENT.
• THEY DON’T HAVE GOOD INTERACTION WITH TEACHERS AND THEIR CLASSMATES.
• WE SPEND MORE TIME ON TECHINCAL GADGETS WHICH MAY HARM OUR EYES.
• THEY LOOSE THEIR INTREST IN STUDIES.
• STUDENTS MAY FACE TECHNICAL ISSUES.
• EVERYONE CANNOT AFFORD TO BUY TECHNICAL GADGETS (MOBILE , TV ETC.,).

AS WE SEEN BEFORE THERE ARE PROS AND CONS IN THIS SYSTEM. FROM STUDENT POINT OF VIEW THEY FACE MANY PROBLEMS THEY FEEL DEPRESSED AND LONLEY. SOME STUDENTS DIDN’T EVEN KNOW THEIR CLASSMATES DUE TO THIS. FINALLY AS THE SITUATION DEMANDS FOR ONLINE EDUCATION SO WE HAVE TO SACRIFICE SOMETHING UNTIL THE SITUATION GETS BETTER FOR US.

The ultimate guide to hot ice

Bog credits Yash Jangid

Sodium acetate is a chemical that can be supercooled, meaning it can remain a liquid below its normal freezing point. The amazing part of this reaction is initiating crystallization. Hot ice’ is created using sodium acetate, which is a salt created from the reaction between sodium bicarbonate, or baking soda, and acetic acid, or vinegar.To create it, first, you simply need to mix distilled vinegar with baking soda, let it react and what results from this is sodium acetate (CH33OONa), a colourless, non-toxic water soluble salt with incredible chemical properties. This product will be useful to obtain sodium acetate trihydrate, the so-called hot ice (CH33OONa⋅3⋅3H22O), which is just basically the same substance but now surrounded by three molecules of water.The production of sodium acetate is given by the following chemical reaction: CH33COOH + NaHCO33 ⟶⟶ CH33OONa + H22O + CO2Pour supercooled sodium acetate onto a surface and it will solidify as you watch, forming towers and other interesting shapes.This process is exothermic, meaning that the solid structure is warm to the touch.The chemical also is known as “hot ice” because the crystallization occurs at room temperature, producing crystals that resemble ice cubes.In industry, this substance (sodium acetate trihydrate) is actually used to keep tortillas warm inside a container or to heat gloves during the winter. You get to control when you want the tortillas hot, so it’s a neat (and crucially, non-toxic) way to keep food and freezing fingers warm.So do try Hot ice onceTry the experiment yourselfYou can try to form hot ice by doing what we described above. All the substances used are non-toxic. If you want to avoid using vinegar, you can buy the sodium acetate trihydrate in any store

CAN MACHINES THINK?

Blog credits Venumadhav, 1st year
Isn’t it boring? That we need to learn some other half human language to talk to our life-less mates.
Of course we are all waiting for some fully developed technology which could talk to us just like Jarvis speaks to Tony Stark. For that to happen we need let our machines to think on their own. This thought is pretty fascinating, isn’t it? These thoughts are what paved our way towards Artificial Intelligence.
ARTIFICIAL INTELLIGENCE is a branch of computer science concerned with building smart machines capable of performing tasks that typically need human intelligence.
Less than a decade after breaking the Nazi encryption machine and helping the Allied Forces to win World War II, mathematician Alan Turing changed history for a second time with a simple question: “Can machines think?”
AI is the branch of computer science that aims to answer Turing’s question affirmative by trying to stimulate or replicate human intelligence in machines.
This expensive goal of Artificial Intelligence led to a LOT of debates that there isn’t a singular definition of this field which is universally accepted. A major limitation in defining AI simply as “building machines that are intelligent” is the question what makes a machine intelligent?
Artificial intelligence falls under two broad categories:
• Narrow AI (or) Weak AI is a kind of AI that operates within limited context and is a simulation of human intelligence. Examples of this include Google search, Image recognition software, Personal assistants (Siri, Alexa).
• Artificial General Intelligence (AGI) (or) Strong AI is the kind of intelligence we were seeing in present day movies. It’s much like a human being which can apply its own intelligence without limitations.
In 2016, The first “robot citizen”, a humanoid robot named Sophia, is created by Hasen Robotics and is capable of facial recognition, verbal communication and facial expression. This is high step from Narrow AI toward AGI.

An ultimate introduction to binary tree

KNOW MORE ABOUT STRINGS

Embrace the coffee and accept the cup.

THE PIGEON HOLE PRINCIPLE

BLOG CREDITS VIVEK FIRST-YEAR CSE

:-Statement:-If we put more than n pigeons into n pigeonholes, at least one pigeonhole will house two or more pigeons.Form1:-If m objects are put in n boxes and n < m, then at least one box contains at least two objects. The one-line proof is by contradiction: If every box contains at most one object, there are at most n · 1 = n objects. A more rigorous formulation of the principle is as follows: Given two sets A and B, with |A| = m > n = |B|, for any function, f : A → B there exists b ∈ B such that |{x ∈ A: f(x) = b}| > 1.Form 2:-For a nonempty finite collection of integers (not necessarily distinct), the maximum value is at least the average value.Form:-3 If m objects are put in n boxes, then at least one box contains at least ¢[m/n] objects. The proof is again by contradiction: If every box contains at most ¢[m/n] − 1 < m/n objects, there are less than n(m/n) = m objects.(Where ¢[k] is ceiling function of k)Example:- A bag contains 5 red, 8 blue, 12 green, and 7 yellow marbles. The least number of marbles to be chosen to ensure that there are

(a) at least 4 marbles of the same color are 13

(b) at least 7 marbles of the same color is 24,

(c) at least 4 red or at least 7 of any other color is 22.

ELECTRIC MOTOR AND IT’S APPLICATIONS

‘Electric’ means one which works on electrical energy.’Motor’ one that imparts motion. So motor which converts applied electrical energy to mechanical energy. It is rotating device
which results into rotation of rotor on application electric field.
🔌 Electric motor mainly consists of rotor, bearings, windings, commutator.
🔌Electric motor works on the principle of magnetic effects of applied electric current. It works on combine effect of electric and magnetic field.
🔌The magnetic field in electric motor is produced using windings in motor.
🔌The driving force in electric motor is torque produced due to applied electric energy.
🔌Electric motors can be classified into two main types:-
1)AC motors:- works on alternating(AC) current.
2)DC motors:- works on direct(DC) current.
🔌 Applications of electric motors:-
As it is device which converts electrical energy to magnetic energy it has many application in household as well as industrial purposes. Also electric motors are more environmental friendly as they do not cause any pollution.
1)Electric motor in household devices:- Electric motor is used in vaccum cleaners, fans,dishwashers, computer printers etc.
2)Electric motor for industrial purposes:- Electric motors used in paper mills, crushers, rolling mills,turbines etc.

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