## Posts Tagged ‘distance’

May 10, 2019
Mathspig grew up on a police station in the small Australian country town of Kyneton, Victoria in the 1960s. Australia has a very strict gun laws today. But such laws didn’t exist in the sixties. My Dad’s .22 rifle rested against our fridge. He pocketed the magazine.

**A .22 means a bullet calibre of .22 inches.**

**My Dad the Sharp Shooter** stopped a stolen car with one bullet. This was considered legendary by his fellow cops. He didn’t shoot the tyres. He managed, by accident and possibly even though he was aiming at the tyres, to hit the electrical lead into the car’s distributor cap. Phht! Car go no more. More on my childhood **here.**

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**Sharp Shooter Maths**

One measure of the accuracy of rifles, riflescopes but also the sharpshooter is the MOA or Minute of Angle. The MOA can also be used to define the target zone (circle).

I cannot show you a triangle with an angle of 1′ because it would have to be 100m long on one side and only 3cm tall.

Needless to say, drawings are NOT to scale.

A sharpshooter can put 5 out of 6 bullets in a target zone drawn at 1′ angle around centre of target at any distance.

As the distance away from the target increases the target zone circle area increases.

A sharp shooter would be considered very skilled if they can shoot within a target zone (circle) of 10.5 inch radius at 1000 yds. Hitting a bull’s eye at this distance is down to luck.

Posted in Sharp Shooter Math, Uncategorized **|** Tagged calculations, distance, Minute of Angle, pythagoras, radius, real, rifle, sharp shooter, sniper, Sniper Maths, tan, target, trigonometry, World, zone **|** Leave a Comment »

May 10, 2019
When Mathspig recently saw images of some Russian soldiers covered in medals it prompted the question

### ‘Could medals protect the wearer from a sharpshooter?’

Mathspig was interested in this question because megalomaniac military dictators who take over countries by force tend to award themselves lots of medals. But they are also likely to be the target of sharpshooters from a liberation movement.

The target zone (circle) had a diameter of 1.9cm. This is smaller than the diameter of an American Quarter, an Australian 10c and a UK pound all of which have a diameter of appro 2.4 cm.

So the megolmaniac military dictator wins!!! He IS protected – on his chest – by his medals!!!!!! Unless the sharpshooter manages a ‘lucky’ shot.

Posted in Sharp Shooter Math, Uncategorized **|** Tagged army, calculation, circle, definition, distance, Math, medals, megalomaniac, military, Minute of Angle, MOA, protection, rifle, sharp shooter, sniper, target, zone **|** Leave a Comment »

May 8, 2019

Mathspig grew up on a police station in the small Australian country town of Kyneton, Victoria in the 1960s. Australia has a very strict gun laws today. But such laws didn’t exist in the sixties. My Dad’s .22 rifle rested against our fridge. He pocketed the magazine.

**A .22 means a bullet calibre of .22 inches.**

**My Dad the Sharp Shooter** stopped a stolen car with one bullet. This was considered legendary by his fellow cops. He didn’t shoot the tyres. He managed, by accident and possibly even though he was aiming at the tyres, to hit the electrical lead into the car’s distributor cap. Phht! Car go no more. More on my childhood **here.**

cc

cc

**Sharp Shooter Maths**

One measure of the accuracy of rifles, riflescopes but also the sharpshooter is the MOA or Minute of Angle. TheMOA can also be used to define the target zone (circle).

I cannot show you a triangle with an angle of 1′ because it would have to be 100 yds long on one side and only 1 inch tall.

Needless to say, drawings are NOT to scale.

A sharpshooter can put 5 out of 6 bullets in a target zone drawn at 1′ angle around centre of target at any distance.

As the distance away from the target increases the target zone circle area increases.

A sharp shooter would be considered very skilled if they can shoot within a target zone (circle) of 10.5 inch radius at 1000 yds. Hitting a bull’s eye at this distance is down to luck.

Posted in Sharp Shooter Math **|** Tagged calculations, distance, Minute of Angle, pythagoras, radius, real, rifle, sharp shooter, sniper, Sniper Maths, tan, target, trigonometry, World, zone **|** 1 Comment »

May 8, 2019
When Mathspig recently saw images of some Russian soldiers covered in medals it prompted the question

### ‘Could medals protect the wearer from a sharpshooter?’

Mathspig was interested in this question because megalomaniac military dictators who take over countries by force tend to award themselves lots of medals. But they are also likely to be the target of sharpshooters from a liberation movement.

The target zone (circle) had a diameter of 0.7 inches. This is smaller than the diameter of an American Quarter, an Australian 10c and a UK pound all of which have a diameter of approx 0.96 inches.

So the megolmaniac military dictator wins!!! He IS protected – on his chest – by his medals!!!!!! Unless the sharpshooter manages a ‘lucky’ shot.

Posted in Sharp Shooter Math **|** Tagged army, calculation, circle, definition, distance, Math %, medals, megalomaniac, military, Minute of Angle, MOA, protection, rifle, sharp shooter, sniper, target, zone **|** 1 Comment »

June 27, 2016
Posted in 1 Second, Arithmetic, Junior School, Middle School, Olympic Maths, Rates, Senior School, units length, units speed, Year 7 mathspig, Year 9 Mathspig **|** Tagged 1 Second, 14 year old, baseball, bike rider, distance, dolphin, F1, fastest, jet, Math %, Olympic, record, skateboard, speed, swimmer **|** Leave a Comment »