Monday, 6 May 2013
A Boy and his Atom
Sunday, 5 May 2013
Tuesday, 30 April 2013
A to Z Blogging Challenge - Z is for Zero!
Here is a brief history of Zero.
Numbers were
used for thousands of years before they used zero. Egyptian hieroglyphics were used as early as 3500 B.C. Egypt did not have - or need - a zero. Even without zero,
Egyptians became masters of mathematics.
The
Greeks brought mathematics to its highest point in ancient times. Around 500
BC, the Greeks developed a newer more sophisticated system which avoided
repeated letters, but both the Egyptian and Greek number systems still had no
zeros.
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| And yes, the symbol for 80 is Pi |
In 2500
B.C., the Babylonians started to use Base 60 (which is why there are 60 seconds in a minute, and 60
minutes in an hour). They sometimes used a space to represent
an empty position. By about 200 A.D., they used a pair of
small triangles to represent an empty position. Although the Babylonians never actually invented
a zero, they did make the important first step.
Hindu
culture had a positional number system in base ten. They
used a dot to represent an empty place, and was called ‘Sunya’ which meant empty. At this point,
the early zero was a placeholder and an aid in calculation. By 500 A.D., the Hindus use a small circle to represent Zero, and was recognized
as a numeral.
Arabic people recognized the value of the
Hindu system and adapted the numerals and calculations. Word then spread the ideas in their
travels The zero was named with the Arabic word ‘sifz’. Fibonacci, after learning
Hindu-Arabic numerals from his Arabic tutors, brought news of zero and new computational
methods to Europe.
Europeans resisted Hindu-Arabic numerals. At first, the numerals, including zero, were not accepted, even to the
point where Florence, Italy, passed a law prohibiting
the use of the numerals. Slowly, the numbers became accepted
In the history of culture the
discovery of zero will always stand out as one of the greatest single
achievements of the human race.
-Tobias
Danzig
Zero is the number that separates positive numbers from negative
numbers. It’s even, it’s the integer that precedes
one. Happy A to Z Blogging Challenge!
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Monday, 29 April 2013
Saturday, 27 April 2013
Friday, 26 April 2013
A to Z Blogging Challenge - W is for Whales with legs
Whales have lost their hind legs (the front ones are now their
flippers), and we have a pretty good fossil record of how they did so, thanks
in large part to the work of Phil
Gingerich (see his great whale evolutionsite here) and his collaborators.
Although whales lack external
hind legs, they do have internal rudiments of the hind limbs and pelvic girdle,
as seen at the top of the above image, which goes through the evolutionary
process of how whales came to be. I think whales having legs is pretty much the
most fool proof way of proving evolution.
Also this, because it made me laugh
Thursday, 25 April 2013
A to Z Blogging Challenge - V is for Voyager 1
Voyager 1 is on the edge of the solar system! It was lauched in 1977, and is only now reaching the edge of the solar system, or the outer heliosphere to be exact.
Wednesday, 24 April 2013
A to Z Blogging Challenge - U is for United Kingdom etc. Explained
Tuesday, 23 April 2013
A to Z Blogging Challenge - T is for The Name of the Doctor
On a more positive note, it seems that Clara and River will meet for the first time. Should be interesting...
Monday, 22 April 2013
Saturday, 20 April 2013
Friday, 19 April 2013
A to Z Blogging Challenge - Q is for Queen Elizabeth II
Here are a few things I bet you didn't know about Queen Elizabeth Windsor
- She speaks fluent french
- She is the 40th ruler since William the Conqueror was crowned in 1066
- There have been 12 British Prime Ministers during her reign
- She was the first British Monarch to celebrate her diamond wedding anniversary
- Her real birthday is this Sunday (April 21), but it's celebrated in June, because April 21 is too close to Easter
- And last but not least, she has 30 god children.
Thursday, 18 April 2013
Wednesday, 17 April 2013
A to Z Blogging Challenge - O is for OneMoreLevel
OneMoreLevel is an awesome flash game site that is regularly updating. Sorry this is sort of a crappy O, but I can't think of anything else for the life of me.
Tuesday, 16 April 2013
A to Z Blogging Challenge - N is for Nerd
No-one is really sure where the term 'nerd' came from. There are several possibilities to the origins of this word.
Dr Seuss's If I Ran the Zoo
The first appearance of the word 'nerd' is in the 1950 Dr Seuss book If I Ran the Zoo. The book talks about a boy who is bored with all the plain animals in his local menagerie and describes the wonderful, exotic creatures he would exhibit if he was head zookeeper. An example of these beasts is the fantastic Fizza-ma-Wizza-ma-Dill, which is described as "the world's biggest bird from the island of Gwark, who eats only pine trees, and spits out the bark."
The word 'nerd' appears in the line:
And then, just to show them, I'll sail to Ka-Troo
And
Bring
Back
an IT-KUTCH
a PREEP
and a PROO
a NERKLE
a NERD
and a SEERSUCKER, too!
Dr Seuss's If I Ran the Zoo
The first appearance of the word 'nerd' is in the 1950 Dr Seuss book If I Ran the Zoo. The book talks about a boy who is bored with all the plain animals in his local menagerie and describes the wonderful, exotic creatures he would exhibit if he was head zookeeper. An example of these beasts is the fantastic Fizza-ma-Wizza-ma-Dill, which is described as "the world's biggest bird from the island of Gwark, who eats only pine trees, and spits out the bark."
The word 'nerd' appears in the line:
And then, just to show them, I'll sail to Ka-Troo
And
Bring
Back
an IT-KUTCH
a PREEP
and a PROO
a NERKLE
a NERD
and a SEERSUCKER, too!
Newspapers
Only a year after the publication of the Dr Seuss book, 'nerd' started appearing in several American newspapers. However, this is probably not because of If I Ran the Zoo.
On October 8 1951, page eight of Newsweek, a weekly newspaper from New York that ran from 1933 to December 2012, reported:
In Detroit, someone who once would be called a drip or a square is now, regrettably, a nerd, or in a less severe case, a scurve.
There are several other sources of newspapers with the word 'nerd' now with its current definition. By the 1950's,it is believed that this word had spread throughout America, an d eventually, the world.
Monday, 15 April 2013
Sunday, 14 April 2013
A to Z Blogging Challenge - L is for Light Pokémon
A new light Pokémon has been released! Going by the Japanese name Ferion, it is a Light/Flying type. With it's release was more information about how light type will work.
- Offensively, Light types will be Super Effective against Dark, Fighting, and Steel types. They will not be very effective against Rock, Psychic, or other Flying types.
- Defensively, Light types will be weak against Ghost, Poison, and Dark types and resistant to Fighting and Light.
Labels:
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Friday, 12 April 2013
Thursday, 11 April 2013
A to Z Blogging Challenge - J is for Jokes
Here are some really good nerdy jokes
- A Higgs boson particle goes into church and the preacher said "Higgs boson particles aren't allowed in here! You call yourself the God particle, and that's sacrilegious!" The Higgs boson particle replies, "If you don't allow Higgs boson particles, how do you have mass?"
- Why did the chicken cross the mobius strip? To get to the same side
- Theres a band called 1023MB. They haven't got any gigs yet
Labels:
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Bill Cosby,
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church,
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mobius strip,
sin,
tan
Wednesday, 10 April 2013
A to Z Blogging Challenge - I is for Interrobang
This hybrid punctuation mark is pretty much the only punctuation symbol that was born in the USA. The interrobang combines a question mark and an exclamation mark to indicate a mixture of query and shock, ie: "She said what‽" The interrobang first made a public appearance in early 1950s US comic books
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