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Posts tagged with computers

iPhone 13 has power in spades

September15

“The iPhone 13 is powered by a new chip designed by Apple: the A15 Bionic. Executives called the chip the “fastest CPU in any smartphone.” It uses 5-nanometer technology and includes 15 billion transistors, a 6-core CPU and 4-core GPU. The technology will give the iPhone improved machine learning capabilities, such as real-time video analysis and the […]

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Code Warrior Sells His Suit of Armour

June16

Tim Berners-Lee, creator of the World Wide Web, is auctioning off his invention’s source code as an NFT. Although the groundbreaking code has long been in the public domain, the British computer scientist has now authorized the sale of a single edition of his original time-stamped files. Comprising over 9.500 lines of code, the files contain the […]

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Great Design, Great Passion with Steve Wozniak

December9

In this flashback video, Steve Wozniak takes us on a personal journey through the early years at Apple:

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You can’t build these gates with Lego!

April3

Researchers at Oxford University have set a new speed record for the ‘logic gates’ that form the building blocks of quantum computing – a technology that has  the potential to dwarf the processing power of today’s classical computers. The Oxford team is using a trapped-ion technique to develop its computer, in which logic gates place […]

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Equations decode the chaos of cancer

January19

A recent news article (in the NZ Herald) indicated some hope in the chase to find effective cancer cures. It noted, “A cancer forms when a cell in the body goes awry, multiplying out of control to form a tumour. A typically-sized cancer tumour is made up of more cells than there are people on […]

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One Apple 1 is very special

October23

At the calculating roots of our high school math courses was a rather crude looking computer called the Apple 1. Guess what? A model of the Apple-1 (above) recently sold for a stratospheric $US905,000 by Bonhams auction house! This was a working model of the Apple-1 and among the 50 models that were assembled by […]

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Humungous New Data Centre

August2

The National Security Agency (NSA) recently opened their new data collection centre in Bluffdale, Utah. The new $1.5 billion dollar facility covers nearly one square kilometre just outside Salt Lake City. The low, four-level facility spans 93,000 square metres and requires 3,800 cubic metres of water and 65 megawatts of electricity per day. The electric bill […]

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The Mathematics of Sailing

July20

As the previous post indicated, Mathematics is at the heart of every top sport – whether in the data collection and analysis or in the calculation of successful equations to balance performance against each parameter. In this article from WhyDoMath the goal in yacht design is to find the most efficient shape of the hull its […]

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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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