Global Terrorism: Worldwide Terrorist Attacks (1970-2015)

Terrorism is a major issue all over the world. Terrorism is, in its broadest sense, the use of intentionally indiscriminate violence as a means to create terror or fear, in order to achieve a political, religious, or ideological aim. It is classified as fourth-generation warfare and as a violent crime. In modern times, terrorism is considered a major threat to society and therefore illegal under anti-terrorism laws in most jurisdictions.

Here in this post, I have demonstrated and visualized all the terrorist attacks happened all over the world since 1970, up-to 2015.

You can set the parameters from the right hand side of the dashboard by choosing the Year, Month and Day of the attacks you want to view and you will be shown, on the map, all the attacks on the selected date.

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If you wish to see the attacks on one, or more countries at once, you can also select the names of countries from the drop-down list

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Finally, on the bottom of the map, we have the numbers. The information shown is the number of civilians dead and wound during the attacks, the number of terrorists killed during the operation, the total number of suicide attacks, and the damage posed (in billions) to the property for the selected year.

You can also hover over a particular spot and get more information about the attack.

Check out the viz here:

Global Terrorism Database (1970-2015)

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Braking of a car

Ever wondered how a car stops?
The process of braking of a car can be broken down into three steps:
  1. Reaction
  2. Applying the brakes
  3. Deceleration

First of all, the human, or the person driving/controlling the vehicle assesses the situation and decides to stop the vehicle.

Next, the person applies the brake pedal, or engages the braking system of the vehicle.

Further, the physical forces work and decelerate the car until it stops.

Total stopping distance consists of three components:

  1. Reaction Distance. First. Suppose the reaction time is 1.5 seconds. This means that the car will travel 1.5 x80.67 or 120.9 feet before the brakes are even applied.
  2. Brake Engagement Distance. Most reaction time studies consider the response completed at the moment the foot touches the brake pedal. However, brakes do not engage instantaneously. There is an additional time required for the pedal to depress and for the brakes to engage. This is variable and difficult to summarize in a single number because it depends on urgency and braking style. In an emergency, a reasonable estimate is .3 second, adding another 24.2 feet.
  3. Physical Force Distance. Once the brakes engage, the stopping distance is determined by physical forces (D=S²/(30*f) where S is mph) as 134.4 feet.

Total Stopping Distance = 120.9 ft + 24.2 ft + 134.4 ft = 279.5 ft

(Source: Marc Green’s article on Human Factors)

An interactive visualization for the scenario can be seen by clicking on the below link.

 

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