Time and Direction - Orchids

• Time is the irreversible sequence of events that occur in the past, present, and future.
• Directions are used to specify the position of something with respect to another. There are four main cardinal directions used.
• It is necessary to know about the time and directions for doing daily tasks precisely.
• Time and directions play an important role in daily life. This concept is about time and direction.

## What Is the Time?

### Who and Why Has It Decided To Make a Minute of 60 Seconds Instead of 10 or 100 Seconds?

• Many centuries ago, an ancient civilisation called Babylonian decided to make a minute with 60 seconds
• The number â€˜60â€™ can be derived by multiplying many different numbers such as (1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60).
• It becomes easy to tell the exact time using the 60-second minute.
• Therefore, it was decided to make a minute of 60 seconds.

### Why Are the Total Days in Each Month Not the Same?

• Our calendar system is based on the total number of days the moon takes to complete its lunar phases.
• This takes 29.5 days to complete from the new moon to the full moon and back to the new moon.
• This is not an even number; hence the whole year cannot be divided evenly.
• So, to make it easy to count the months, some months are with a day extra or less.

### What Is a Leap Year?

• A year is a time required to complete one revolution by Earth around the Sun.
• Earth takes 365 and 1/4th days to complete a revolution around the Sun.
• This extra 1/4th day after every four years is counted as one complete day. Hence, every 4 years, we have 1 extra day in the year that is added to February.
• Hence, in every leap year, we have 29 days in February and 366 days in the year instead of 365,

## How To Know Directions?

### Why Does the Needle of the Magnetic Compass Always Point to the North?

• A magnetic compass works on the magnetism of Earth.
• Earth is like a giant magnet that has two different poles.
• These poles are situated exactly opposite each other.
• A needle in a compass acts like a tiny magnet and always aligns itself to the north pole of Earth.

### How Are All the Places Far Away From Each Other Fitted on a Single Small Map?

• The accurate distances between the places are scaled down proportionately and accordingly represented on the map.
• For example, 1000 km can be expressed in 1 cm on a map.
• Also, to represent various places, symbols are used.
• This makes it easy to represent a large area on a small piece of paper.

### What Are the Equator and Prime Meridian?

• The prime meridian and Equator are imaginary lines that divide the Earth into equal halves.
• The Equator divides it into two equal northern and southern hemispheres.
• The prime meridian divides Earth into eastern and western hemispheres.