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Archive for January, 2015

Science needs Mathematics!

January31

You might say, “Of course Science needs Mathematics, just as cars need engines.” In some ways, Mathematics is the glue that holds Science together. Mathematics powers the Sciences! This begs the question – “Does Mathematics need the Sciences?” “Mathematics is used in Physical Science for measurements and to show relationships. Arithmetic consists of simple operations […]

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Have you taken your daily dose of bedtime math?

January28

Finally, someone else gets it too – doing Mathematics should be fun and a regular dose of fun math on a daily basis will certainly help. The mission of Bedtime Math is, “…to help kids love numbers so they can handle the math in real life.” This site brings a host of interesting math facts, […]

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Great Galloping Galaxies in 4GB!

January24

The Hubble Space Telescope of ESA has captured the largest and sharpest image of the Andromeda galaxy that lies at a distance of 2.5 million light years. The image was first released at the meeting of 225th meeting of American Astronomical Society (AAS) in early January and is comprised of 1.5 billion pixels. It uses […]

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Manjul Bhargava shares his love for Mathematics

January22

“India’s Math Genius Manjul Bhargava talks to NDTV (New Delhi Television) about his love for mathematics, and suggests that the teaching of math in India can be made fun and ‘less robotic’, using even magic tricks as teaching aids. He also touches on the mathematical nature of the tabla and other forms of music. NDTV: […]

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Da Vinci inspires Museum Exhibit

January15

For Leonardo da Vinci, mathematics was the ultimate key to understanding nature and could be applied in both art and science. He applied the results of his wide exploration of Mathematics, in particular the key principles of geometry and proportions, to all other disciplines of his practice. Da Vinci’s interest in geometry was instigated by […]

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Accidental Mathematician – literally!

January15

From ABC News comes this remarkable story of what H3 calls an “Accidental Mathematician“. “Working behind the counter at a futon store in Tacoma, Wash., is not the place you would expect to find a man some call a mathematical genius of unprecedented proportions. Jason Padgett, 41, sees complex mathematical formulas everywhere he looks and turns them […]

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Mathematics and The Universal Machine

January13

Wikipedia describes Alan Turing, as “a British pioneering computer scientist, mathematician, logician, cryptanalyst, philosopher, mathematical biologist, and marathon and ultra distance runner”. This description overlooks the enigma (puzzle) that surrounded this great mathematical mind. And it was an Enigma that challenged his mind to the ultimate test! Mathematicians love challenges that seem to defy logic. […]

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Even Mathematics needs a vacation!

January6

Yes, H3 is having a few days on vacation, which reminds us of some great Math activities to do while heading away on vacation. Click on the following image to check out a host of fun Math travel vacation acitivites to do while you are travelling to that favorite destination, etc. Even H3 was doing […]

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Welcome to 2015

January1

2015 (MMXV) is the 2015th year of Anno Domini (“in the year of the/our Lord”, abbreviated AD) designations, the 15th year of the 3rd millennium, the 15th year of the 21st century, and the 6th year of the 2010s decade. Because the world is divided into Time Zones, we were able to celebrate the New Year first […]

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Post Support

Largest number between o and 1 million which does not contain the ‘n’ is 88

 

Rotation SAT Problem: Answer: 4 (see: https://www.youtube.com/watch?v=FUHkTs-Ipfg)

 

Which number has its letters in alphabetical order? Answer: F O R T Y

Hidden Rabbit? Clue: check the trees

How long for the stadium to fill? 45 minutes.

Where are you? the North Pole

Prize Object Puzzle: If Sue does not know where the prize is in the first question, it can’t be under the square. She must have been told it is under another shape. Apply this same logic to Colin. It is then obvious that the prize cannot be under a yellow object. That helps Sue eliminate her yellow shapes. Got the idea?

Algebra Puzzle: Answer = 1

Popular Math Problems Answers: 1, 1

Number of tabs? According to Lifehacker, the ideal number of tabs you should have open is nine. Yes, a single digit. To some, this is like playing a piano and only using a fraction of the notes!

Worst Graph? Where to start. What a visual mess and even some of the lines merge and are impossible to follow. A graph is a visual display of data, with the goal to identify trends or patterns. This is a spider’s web of information which fails to show a clear pattern at all. Solution? Well, different colors would help, or why not group in two or three graphs where trends are similar?

Number of different nets to make a cube is eleven – see this link

Homework Puzzle; The total value of the counters is 486, so halve this to get 243. Now, arrange the counters to equal this amount twice.

The graph on the left (Coronavirus) is for a time period of 30 days, while the one on the right (SARS) is for 8 months! Very poor graphical comparison and hardly relevant, unless it is attempting to downplay the seriousness of the coronavirus?

10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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