Saturday, 30 November 2013

Euler Piruleta Vs. The Evil Rangers and Their Megazords

Although we have tried to contain it, the Sumatra Virus evolved and mutated and it got to Japan.  You know what happens in Japan they are fond on robots, samurais and all that stuff, thus the virus turned the population into Evil Power Rangers and Evil Megazords. 

The only person who seems immune to the virus is Hiroki-San, an elderly grandpa who lives in the mountains. He is determined to end the chaos Japan is living in, but he needs time to think thoroughly about a schem. The first think he needs to do is reinforcing his own house with anti-Zord mines, one per square meter.

Unfortunately, he doesn’t know the surface of his land, he only has a blueprint. He wonders how can I get the surface of my land with only this blueprint?. Suddenly, something rings the bell and he remembers that decades ago he had learnt a way to obtain the surface of a triangle knowing only the lengths of its sides: Heron Formula. Quickly, he looks through his notes and finds a piece of paper with it!


                             SCALE:    1 : 200

a)      Can you help Hiroki-San to get the surface of his land?

b)     How many anti-Zord mines will he have to use to prevent his home from being assaulted?

TIPS:  You have to print the pdf version to get the blueprint. Use a ruler to measure the lengths. Don’t forget you’ll have to use the scale at some point to get the surface of the real land, and not the surface of the blueprint.

Printable version available.
Deadline: December the 15th 

Let's honor the real and almignthy power rangers who gave my generation endless hours of (repeatedly and relentlessly the same) fights and adventures.

Original Opening 1991

Morphing and UltraMegaZord

And prior to the Power Rangers (you would have never heard about them) there were the BIOMAN (1988), only three warriors from japan:

Bioman 1988 Spanish Opening

León Meteoro! Delfín Luchador! Aeorocondor!! <3

PS: I cannot correct the previous challenge because I forgot your written answers are in the High School. I'll tell you on wednesday!

PS: Alberto, Iñaki G, Jorge and Ivan have 2 positives (that is 40 extra coins!!!) and Miguel ahas 1 positive (20 coins) thanks to the previous challenge. Congratulations! :D

Sunday, 17 November 2013

Euler Piruleta Vs. The Braindead-Zombies

A virus from Sumatra has been introduced in a small village by an infected rat. This despicable virus turns people and animals into evil-hilarious zombies.

Fortunately, the militaries have managed to confine the civilian zombie population into a piece of land delimited by an iron fence.

However, these monstrous creatures ought to be exterminated to prevent the infection being spread all over the Earth!!

The clock is ticking!

a)  Can you calculate how many meters of titanium fence do they need to use to surround the land (to reinforce the iron fence)?

b)  Once the land is secured, it is vital to calculate its surface to produce the poisonous gas that will eradicate these evil creatures once and for all.

TIPS:  Circumference’s surface:

         Circumference’s length:

        Notice that the curved lines which join opposite vertices of a square have the 
       shape of a circumference:

Deadline: November the 28th.
Printable version available.

The idea of this challenge comes from the great Peter Jackson's 1992 film "Braindead", starring the aunt of my beloved friend and amazing Maths teacher Maria whom I would like to dedicate this crazy challenge :P Even the trailer is hilarious!

Nevertheless, if you would like to try something that is not so related to human organs, "Full Metal Alchemist Brotherhood" is probably one of the best anime series of the last few decades:

PS: Jorge, Alberto, Juan and Iñaki G handed the right solution to the last challenge!

Friday, 8 November 2013

Euler Piruleta Vs. ChairCher

ChariCher is the result of an unsuccessful fusion between Matfor’s legendary music Diva Cher and one chair from her office. The result is a monster who has prepared a single that will blow up Matfor inhabitants’ tympanums.

The only way to dismantle that single radio broadcast is placing the numbers from 1 to 12 in the panel below in such way that every four numbers aligned sum up always the same quantity.

Can you get the right configuration of numbers from 1 to 12 verifying that the addition of any 4 aligned numbers gives always the same result?

Deadline: November the 15th
Printable Version available.

As I told you, ChairCher is the only living artist who had 6 number 1 hits in 6 different decades. If you have a look at the videos below, you will see that the evoluation is quite interesting... :P

1960s: I got you babe

1970s: Gypsys, Tramps and Thieves

1980s: If I could turn back time

1990s: Believe

2000s: A different kind of love song

2010s: You haven't seen the last of me

Have a nice weekend!!!

PS: Alberto, Carlos, Gómez, Iván, Verónica, Leyre G, Miguel, Tania and Manu have extra coins due to the last challenge!