Monday 21 October 2019

KNOW WHY FOG LIGHTS ARE USED !!

Front-facing fog lights and fog lamps are a type of automotive headlight that is designed to emit light in a bar-shaped beam. The beam is typically designed to have a sharp cutoff on top, and the actual lights are usually installed low and aimed toward the ground at a sharp angle.


WHY DO WE NEED THEM?

Fog is a regular occurrence in many parts of the world, especially near large bodies of water. When the conditions are right, tiny water droplets or ice crystals can float in the air, just over the surface of the ground. In addition to acting like a cloud and blocking your view, the tiny water droplets or ice crystals decrease visibility even further by reflecting light that hits them. This makes driving through fog with headlights, and especially high beams, a frustrating and dangerous experience.

Fog lights are a solution here, and take a different approach to all that water vapor hanging over the road. They work in multiple poor visibility conditions, including fog, mist, snow, and even blowing sand. In order to let you see the road through the fog, factory-equipped fog lights are placed as low as reasonably possible, usually in the lower bumper cover on most modern vehicles.

The purpose of the fog lamp is to show the driver the road edges, lane markings and the foreground abruptly appearing during road drive. When used with headlamps in extremely poor visibility, a driver can maneuver safely at slow speed in snow, fog or heavy rains.

DIFFERENCE BETWEEN HEADLIGHT AND FOG LIGHT

1.Driving lights are used in vehicle to provide clear view of forward of the vehicle and intended to supplement the high beam of a standard headlight system. While fog lights are used to reflect the fog, snow, or dust particles in the air are developed for use on dangerously thick conditions.

2.Driving lights produces white light while fog light produces both white and yellow light.

3.Driving lights are used to show clear vision to avoid any road obstacles during night time while fog lights are used in specific conditions like dust, train, fog or snow.

4.Driving lights are installed in every vehicle by default by the manufacturer while in some areas fog lights are also installed according to weather condition in specific region and in most areas it is optional.


WHEN TO USE FOG LIGHT:

You should only use fog lights in situations where there is poor visibility conditions caused by rain, fog, snow, or even an excessive amount of dust in the air.

In short, we can say that fog lamps should be only used in conditions where there is less visibility caused due to snow,fog,dust or rain.We should not use fog lamp in clear conditions as it may distract other drivers on road.


Thursday 10 October 2019

KNOW WHAT DOES "AM" AND "PM" MEAN IN TIME !!


Some countries, including the US, Canada, and Australia, use the 12-hour clock format including AM and PM. What do these abbreviations mean? We will discuss the meaning of AM and PM in this article.

AM stands for Ante Meridiam whereas PM stands for Post Meridiam. This is because the 24 hours of the day are divided into two periods- AM which means before midday and PM means after midday and each period comprises of 12 hours in number.


Hence, the term AM & PM is associated with the time-period: AM, is an abbreviation of the Latin phrase ante merīdiem meaning “before midday”; PM is an abbreviation of post merīdiem, meaning—“after midday.”

This rule gets a bit confusing when you take a look at 12PM and 12AM respectively. For example, 12AM - or ante meridiem - does not make logical sense when you look at the rule because it does not actually come after midnight. 

Therefore, it is always better to refer to 12PM as noon and 12AM as midnight respectively even if analog and digital clocks do label them as the former.

A 24-hour clock, sometimes referred to as military time, states the time according to the number of hours that have passed since midnight. Starting at midnight, hours are numbered from 0 to 24, removing the need for designations like am and pm. For example, at 23:00, 23 hours have passed since the beginning of the current day.

Sunday 6 October 2019

KNOW SCHOOL BUSES ARE ALWAYS PAINTED YELLOW !!


You must have noticed that every school bus has its school name written on it and is painted with yellow colour. Colors not only add to the aesthetic appeal of things, but they also make our lives much easier in many ways.In this article we will discuss the reason behind the yellow colour for School Bus.

Yellow (and the yellow family of colors) gets your attention faster than any other color. People notice yellow objects first.Even when you are looking straight ahead, you can see a yellow object that is not in front of you "in the corners of your eyes" much sooner than any other color even red. Scientists describe this as follows: "Lateral peripheral vision for detecting yellows is 1.24 times greater than for red."This means that as compared to the rest of the colours, yellow has 1.24 times more attraction and also more visibility. The yellow colour of the school bus is also known as the National School Bus chrome yellow.



If there’s fog or any kind of bad weather, drivers will still be able to see yellow cars and any moving vehicle fairly well.Not only are school buses yellow, but also many earth-moving, road-building and other outdoor machines are yellow because you could get hurt if you accidentally run into one of them. Many accidents occur in farms and outdoors because the victim saw the moving object too late. If it’s yellow, you have a strong warning!



This is why the school bus is painted with yellow so that the possibility of accidents on the highway will be less and children can reach their home safely.
Did you know that in the early 1930s, in the US, it was confirmed that there is more attraction in yellow colour than any other colours. That is why some signalling boards are painted with yellow colour.