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Posts tagged with time

And…Counting

May6

There’s a Winnie the Pooh song about counting. “Counting, counting, numbers are for counting…” the wise Owl sung to little Roo who was trying to help Pooh to count his honey pots for the party. Counting is an integral part of our lives today. We count our income and our expenses, we count calories and the […]

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Hang on for the ride

August3

Scientists have been left baffled after discovering the Earth is spinning faster than normal – making days shorter than usual. New measurements by the UK’s National Physical Laboratory show that the Earth is currently spinning faster than it was half a century ago. On June 29, the Earth’s full rotation took 1.59 milliseconds less than […]

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First Math Post of a New Day

July15

H3 will soon be visiting Gisborne, on the East Coast of New Zealand. This is one of the very first places to welcome in each new day and, as such, heralds each new year (click on the countdown clock below to follow progress to 2023). The thought occurred to me that, if I post on […]

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Time for Time Travel?

September29

Hold onto your flux capacitors! A young University of Queensland student may never be late for class again – or even early for that matter. He says he has found a way to “square the numbers” and prove that “paradox-free” time travel is theoretically possible in our universe. From Back To The Future to Terminator, stories […]

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Mathematically, the Time Machine is possible!

May26

Physicists have come up with what they claim is a mathematical model of a theoretical “time machine” – a box that can move backwards and forwards through time and space. The trick, they say, is to use the curvature of space-time in the Universe to bend time into a circle for hypothetical passengers sitting in […]

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We can’t go back in time, can we?

April3

Hey, with Daylight Saving coming into effect, we lost an hour last night, but where did it go? I was taught that, in order to go back in time, you would need to travel faster than the speed of light (thanks Einstein). But, the physicists tell us, this is impossible, so we can’t have lost […]

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Flat out in 3 or 4 Dimensions…

August23

How many dimensions are there in our universe? From 2009 (http://phys.org/news/2009-02-fourth-dimension.html): “Creating a unified theory of quantum gravitation is often considered to be the “Holy Grail” of modern science. Daniel Grumiller (left) from the Institute of Theoretical Physics, Vienna University of Technology, Austria, can now at least unravel some of the mysteries of quantum gravitation. […]

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Quote of the Year

December24

The only reason for time is so that everything doesn’t happen at once. —Albert Einstein.

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There is always enough time for math…

September25

 

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9.1 billion vibrations per second is useful Math!

April4

Good news for people who are sticklers for punctuality: The National Institute of Standards and Technology has a new atomic clock that isn’t supposed to gain or lose a second in roughly 300 million years. The new clock was launched last Thursday. It’s located at the institute’s Boulder center. The clock is the nation’s civilian […]

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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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