Posts Tagged ‘crazy’

h1

1. Movie Stunt Math: Rolling a CAR

October 29, 2018

“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

1 J Mark Eiden Northern Express

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.

ramp caranddriver.com

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.

1a Centre of Gravity

2 Stable Couch3 SUV angleBase vs CofG SUVsTable from Accident Reconstruction Website

4 Bus Centre of Gravity

5 Small car centre of gravity

6 Lambogini Diablo Centre of Grvity

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.

Picture 1

View full video here.

Safe Driving Info here

 

 

 

h1

That Crazy Little Thing Called ZERO

July 4, 2018

Siri, what’s zero divided by zero?

Problems with Dividing by Zero

– Numberphile

Matthew Parker is an Australian stand-up comedian, author, YouTube personality and maths communicator.

Edible Zero. Really!

 

h1

Trick 5: Cool Math Trick

June 4, 2018

Requirements: A Pack of Cards and a willing assistant.

Take 10 cards from pack including the 10 Diamonds.

Lay out card in 3 columns in a pattern of 4 down, 2 down, 4 down.

Put the 10 Diamonds at the top of the  left hand column.

Group students around. You turn your head away and ask a student to point to a card.

You carry on, think allowed and then ask your assistant to point to cards asking:

Is it this one?

No.

Is it this one?

No.…………………………………………………………………………………

When your assistant points to the 10 Diamonds he will show you the position using the diamonds. The cards are laid out on the table in the pattern of the diamonds on the 10 Diamonds.

Whenever your assistant asks is it this one? You will know.

See Mentalism Card Trick:

h1

Trick 6: Freaky Math Medium

May 27, 2018

Write the word carrot inside your math text book. Do not show students.

When Mathspig was a mathspiglet we used to play this trick. It doesn’t work on everyone, but it works  often enough.

Ask a student to say 15 times 15 fifteen times.

Then ask them to name a vegetable. Students say carrot 90% (I’m guessing) of the time.

To make this trick more dramatic send 10 students out of the class before you begin and tell the other half what you are about to do. Students return one at a time. How often do they say ‘carrot’? What % of students say carrot? 

h1

2. I’ve got a BAD maths Teacher

November 4, 2017

The Complaint:  

I’ve got a BAD maths teacher………………

………………………………………………………………………….

The Cause:………………………………………………………………….

Unfortunately, there are GOOD, BAD and CRAZY maths teachers out there. Ditto students.  It is what YOU do when reality hits that counts.

………………………………………………………………………….

The Solution: ……………………………………………………….

Not exactly a solution. More a suggestion. But what are you? A GOOD, BAD or CRAZY student or teacher? Now Watch:

…………………………………………………..

1.Maths Classroom:  THE MOVIE

2. The HORROR STORY

3. The ADVENTURE BEGINS

For students who think they have a BAD maths teacher, watch the first video here.

h1

10. They’re Always Giving Us New Stuff: BUSTED

August 8, 2017

The Complaint:

10. They’re always giving us new stuff.

The Cause:

Maths does have new topics, but not that often. Maths tends to go over and over old topics before adding new material. Students can feel overwhelmed simply because they are not paying attention. They are talking, texting, complaining, graffiting …etc. (See below)

Every day is like the reverse of Groundhog Day. Everything looks new again … new again … new again because they didn’t learn anything yesterday.

Here is the challenge for students: I Dare You To Watch This Entire Video

Really. Can students make it through this video without talking, texting, annoying someone ….? The video is funny and too true.

Video Link here

The Solution:

Start paying attention. Maths will make more sense.

h1

5. Middle School Madness: BIG MATHS

May 19, 2017

Write your own maths song. 

Everyone is in it.

And film it.

Here are 2 hot to rock maths songs. The first song “Geometry is Killa-Hot”

 from the Ron Clark Academy even includes the lyrics.

You can do this. Make maths ROCK!

The second clip is from WSHA MATH. It is great too.

You will find Mathpig’s Math Song Lyrics here.

And Yes! I have had students singing this maths song

with great enthusiasm.