Knowledge Express

how many minutes in a year

Knowledge Express - January 08, 2021 0

Well, the answer lies in some simple math calculations. If you want an answer straight forward then there are 525600 minutes in a year.

For a leap year (means a year that can be divided by 4 and has 366 days) answer is 527040 minutes in a year.

Method of calculation:

We will explore two methods of calculating the minutes in a year. To our surprise, the answer will differ. We also try to learn why the universal calculation system is not accurate and what are the reasons behind it.

Method # 1

Base: Earth orbits around the Sun.

The Earth completes one full circle to the Sun in…

365 Days;

5 Hours;

59 Minutes;

16 Seconds.

Now, let us convert the above data in minutes.

365 Days * 24 Hours * 60 Minutes = 525600 Minutes

5 hours * 60 Minutes = 300 Minutes

59 Minutes = 59 Minutes

16 Seconds / 60 Minutes = 4/15 Minutes

Total = 525959 + 4/15 Minutes

Method #2

Base: Calendar Year

(a) For Ordinary Year.

We know that there are 365 days in a year so, there are 365 Days * 24 Hours * 60 Minutes = 525600 Minutes.

(b) For a Leap Year.

Every year divisible by 4 such as 2020, is called a leap year. Every 4^th century is a leap year.

An ordinary year has 365 days i.e. (52 weeks + 1 day) while
A leap year has 366 days i.e. (52 weeks + 2 days)

Point to Remember: An ordinary year has 1 odd day and a leap year have 2 odd days.

Now, time for the calculation:

366 Days * 24 Hours * 60 Minutes = 527040 Minutes

What is the universal answer?

Well, there is no way to get a real answer because the length of the year varies from time to time and also because of some laws of physics.

However, we can get close to the answer by the above calculations. If you hit google for an answer you will get 525600 minutes.

Social-health

what is cinderella effect ?

Knowledge Express - January 08, 2021 0

Meaning

Revolutionary psychological science term “Cinderella effect” basically means that stepchildren are at higher risk of abuse and maltreatment by the hands of step-parents.

Name

It got the name “Cinderella effect” from the movie "Cinderella" where Cinderella was mistreated by her stepmother and sisters.

Background

This theory first came up in the 1970s by some psychologists. They opined that stepparents have no biological reasons to invest in parental resources in stepchildren. Hence, this step-child is more prone to violence and all kinds of abuse from physical to mental.

Evidence

There is some evidence that supports the authenticity of this theory. For over 30 years of studying the various resources like child abuse, clinical death, victim reports, etc. The long study concluded that in Europe and part of America, risk of child maltreatment and abuse by step-parents is at high risk.

Why Cinderella effect?

Psychologists believe that parents are more likely to use their parenting resources on their own offspring, rather than on the child of others. They seem and act indifferently toward their nonbiological children as compared to their own.

In modern times, it tends to happen more in society, due to the cost of living. Parents obviously want to look after the real children rather than the children of others.

Attachment theory

Attachment theory simply means that the mother genetically shares a special bond with her child. But a mother never can share such emotions and feelings with a child that’s not her own. Hence it’s likely that stepchildren never get that love and affection they desired.

Criticism

Some psychologist believes that there is not much hard evidence that proves the efficacy of the theory. There is some cross-cultural variation in the theory too.

Mathematics

variable and attribute

Knowledge Express - January 04, 2021 0

Introduction:

To make an inquiry or investigation of a problem in any field, data has to be collected. By applying the different methods of collecting data, one can get confusing, voluminous, and complex data. This way when data is collected, it is not possible to use the same for drawing any conclusions.

With the help of classification and tabulation and by applying the statistical techniques, such a large mass of data can be organized into a systematic form. Afterward, a comparison of data is possible and the task of drawing conclusions is also possible very easily.

Let us try to understand the meaning of variables and attributes which are the main basis used for classification and tabulation.

Some of the information collected through a sample survey or population survey is of this kind. For example number of children per family, the number of accident occurs in one place per day, the number of flowers on a plant, height, weight, marks of a student, incomes, expense, saving, etc. of a person, sales, production, demand, purchase, supply, profit, etc. of a firm.

(2) Types of Variable:

There are two types of variables.

(A) Discrete Variable (B) Continuous Variable

(A) Discrete Variable:

When a variable assumes atmost countable number of values (integer values) in an interval or a given range, then such a variable is known as a Discrete Variable. The number of children per family, the number of rooms in a house, etc. are examples of a discrete variable.

(B) Continuous Variable:

If a variable assumes all possible values in an interval (integer and fractional both), then it is called a continuous variable. Hight, weight, marks, etc. of a student, income, expense, savings, etc. of a person are the examples of a continuous variable.

(3) Attribute:

The value of some characteristics of a unit varies from unit to unit but can not be expressed numerically. Such a characteristic is called an attribute. Some of the information collected through a sample survey or a population survey is of this kind. For example beauty, business, honesty, marital status, religion, the financial position of a person, etc.

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