How camera angle affects body shape
Posts Tagged ‘angle’
How GEOMETRY gave Margot Robbie her long Barbie legs
July 30, 2023FOR THE LONGEST KICK or THROW in Football you need this MATHS
April 19, 2022
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The following maths is suitable for Year 9+
but can be presented to lower grades just to show
maths is cool!
1. Stuntman Math: Car Stunts
October 20, 2019“With enough stupidity you can get any car to roll over” (MSN AUTO)
What stuntmen and women need is maths!
Maths is essential to the process, from calculating speeds and braking distances to looking at the ratio of the amount of film shot to the length of time of the end sequence. The stunt and crash is outlined, and the co-ordinator explains how he must calculate speeds and stopping distances carefully.
So you want to be a stuntman?
First think of the pain.
Mark Eiden, 52, a professional stuntman (pictured) who is not only afraid of heights, but was once told he likely wouldn’t walk again. Eiden’s had surgery on both arms and shoulders, five knee surgeries, six nasal reconstructions, foot and hand surgery and a facial cast. He fell off the top of a stunt car at 40 mph when the tyre blew. He gaffer taped his ear and continued, despite severe concussion. Northern Express Michigan
If you still want to be a stuntman do the Maths:
Rolling a Car:
You can use quick handbrake turn, speed around a corner, fishtail into the curb or some other lunatic thing. The most controlled way to roll a car is to use a ramp.
These ramps often have a kicker at the end to add extra lift. Ramp calculations can be complicated, but the simplest way to look at the maths is to determine the angle a car will roll ie. When the Centre of Gravity moves over the base.
Centre of Gravity vs Base Width
The distance between the front wheels in cars is often called the track width.
Table from Accident Reconstruction Website
So the Lamobgini Diablo is very hard to roll (build a higher ramp) and it therefore beats the SUV for stability every time.
Balancing on 2 Wheels
A more skilled stunt involves driving a car on two wheels. A very skilled stunt driver can lift the car onto wheels by snaking the car back and forth across the road until it balances on 2 wheels.
From the Centre of Gravity vs Base angles above you can see that the SUV is the easiest car to balance of 2 wheels.
But there is nothing quite as crazy as this SUV stunt:
Saudis changing car tyres, just insane.
View full video here.
Safe Driving Info here
3. STUNTMAN MATH: Motorbike Jump
October 9, 2019This is a repost of Mathspig’s very popular Stuntman/woman series.
Star Stuntmen
Star Stuntmen Monte Perin (pictured) has involved many films, including “Spider-Man,” “Star Trek, “Indiana Jones and the Kingdom of the Crystal Skull” and portraying Arnold Schwarzenegger’s stunt double in “Terminator 3: Rise of the Machines.”
Perhaps his most difficult stunt was landing his Harley in an open boxcar of a moving train for Disney’s 2008 Adam Sandler movie “Bedtime Stories”. In a career of over 25 years Perin has broken “almost everything” including both his arms, legs, knees, feet, ankles, several ribs, his back and his pelvis. See Confessions of a stuntman
Veteran stuntman Evel Knievel (1938 – 2007) was the pioneer of many stunt jumps. Here he is jumping 10 cars and 3 vans in 1973.
His injuries are legendary:
More Evel Knievel
Ramp Design
The angle of the kicker in ramp design can vary from 100 – 700 (See below)
Moto-X Ramp Jump Maths
As any bike nut knows increasing speed and angle of take off will increase jump distance.
Here is a graph from final gear for speed vs angle to jump 90m.
METHOD 1 is approximate (See STEP 1 & STEP 2 above), but as METHOD 2 produces the same ans (See above), it is very useful.
You will find a thoroughly detailed calc for STUNT JUMP MATHS here:
And everything you ever wanted to know about PHYSICS OF STUNT JUMPS here.
COOL FOOTY MATHS: THE LONGEST KICK
May 25, 2019
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The following maths is suitable for Year 9+
but can be presented to lower grades just to show
maths is cool!
3. Movie Stunt MATH: The Motorbike Jump
October 23, 2018Star Stuntman
Star Stuntman Monte Perin (pictured) has involved many films, including “Spider-Man,” “Star Trek, “Indiana Jones and the Kingdom of the Crystal Skull” and portraying Arnold Schwarzenegger’s stunt double in “Terminator 3: Rise of the Machines.”
Perhaps his most difficult stunt was landing his Harley in an open boxcar of a moving train for Disney’s 2008 Adam Sandler movie “Bedtime Stories”. In a career of over 25 years Perin has broken “almost everything” including both his arms, legs, knees, feet, ankles, several ribs, his back and his pelvis. See Confessions of a stuntman
Veteran stuntman Evel Knievel (1938 – 2007) was the pioneer of many stunt jumps. Here he is jumping 10 cars and 3 vans in 1973.
His injuries are legendary:
More Evel Knievel
Ramp Design
The angle of the kicker in ramp design can vary from 100 – 700 (See below)
Moto-X Ramp Jump Maths
The Problem?
If the ramp angle is too high, the stunt jumper also goes high, but doesn’t travel very far.
If the ramp angle is too low, the stunt jumper doesn’t stay in the air for very long and therefore doesn’t travel far. (see below0
The stunt jumper wants the OPTIMUM RAMP ANGLE.
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METHOD 1: TRIGONOMETRY (cos we can)
As any bike nut knows increasing speed at ake off will increase jump distance.
Here is a graph from final gear for speed vs angle to jump 90m.
OPTIMISING RAMP ANGLE
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METHOD 2: MORE TRIGONOMETRY
METHOD 1 is approximate (See STEP 1 & STEP 2 above), but as METHOD 2 produces the same ans (See above), it is very useful.
You will find a thoroughly detailed calc for STUNT JUMP MATHS here:
And everything you ever wanted to know about PHYSICS OF STUNT JUMPS here.
Parabolas and the Art of Spitting
May 5, 2017
The maths that proves that the 45 degree angle is the angle that produces the maximum distance travelled is quite tricky and involves trigonometry. But this just shows how cool maths can be. See the full calculations here.
More long bow maths here at ROBINHOOD GIVE US YOUR BEST SHOT.
Interesting maths work on WHICH SPORT IS MORE DANGEROUS, BASEBALL OR CRICKET? here.
FOOTBALL MATHS: THE LONGEST KICK
June 3, 2016
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The following maths is suitable for Year 9+
but can be presented to lower grades just to show
maths is cool!
Maths Mystery Box 4: FUNNY THAT
March 3, 2015
Graffiti pic found @ imfunny blog.
Maths is full-on full of humour.
Can you die laughing, sir?
Try these weird death stats.
Or, how about some maths jokes?
Or, how about a Maths Scavenger hunt.
Funny that!
Many maths teachers come up with great ideas so middle school students have fun with maths. Here are a few:
Human Graphs, Charts and Diagrams
How about a human bar graph?
Or a student linear graph?
Find more @ the colab
Or explore geometry through, well, dance?
These students are showing supplementary angles
These students are acting out the concept of complementary angles.
Tricia Appel; Middle School Math
Or, how about the geometry of yoga?
Can you get your leg or knee to make a perfect right angle?
Or how about a Venn Diagram using Hola Hoops?
More info at Howard’s Happy Campers
Or you can measure length using bodies.
How many Smoots long is your football field?
Oliver Smoot is used as a unit of measure in 1962.
Or try measuring the area of your school hallway in bodies!!!!
More info @ Rainbow school, Bradford, UK.
Mathspig Blog 
