mobius strip (mobius band) trick - (technically möbius, pronounced 'merbius')

Courtesy: Information was provided by Mr.C.S. Veeraragavan

This is an amazing trick, ideal for parties, social gatherings, light relief or ice-breakers at meetings, and bar-bets.

Cut a strip of paper so that its length is at least ten times that of its width - something around ten inches by one inch wide is fine.

PUZZLES

Puzzle 1: The strip clearly has two sides, yes? If you were asked to write number 1's all along one side of the strip, and number 2's all along the other side of the strip this would be possible, yes? So could I prevent you from doing this simply by joining the ends of the strip to create a ring or band shape?

Puzzle 2: the strip, (or now a band) is made of paper and if you cut or tear it in half you will have two separate halves, yes? And these two separate halves will actually be separate, so that they can be placed in two separate pockets, yes? So, again, simply by joining the ends of the strip to form a band, can I cut or tear this paper in half, with a continuous cut from a pair of scissors, or a continuous tear, so that you will not be able (unless by force of course) to separate the two halves? More incredibly, can I do this so that you don't actually have two halves at all? So that you actually still have one joined together strip?


You bet.......And here's how

SOLUTION:
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Twist the strip through 180 degrees, ie., half a whole turn, before joining the ends. For the purposes of the tricks you can join the strip with glue (in which case use a glue that sets quickly), sticky tape (a tape you can tear if you do not have scissors), or two staples (aligned lengthways, not sideways across the strip, each close to an edge, leaving a gap between them). You have now made a Möbius Strip, or Möbius Band, which amazingly now has only one side. Try it. It is not possible to colour or number or mark two different sides along the whole of the length of 'each side'. There is now only one side. Feed the band between your finger and thumb through a whole revolution and you will see that what were once two separate sides now pass underneath and touching your thumb.
Now for the cleverest part of the trick: Cut or tear the band in half along its length. You will need to tear or cut it carefully while feeding it through your fingers; you cannot cut it with one motion. You will be left not with two separate halves; not even two joined halves; you will be left with one big band.
Finally you can cut the new big band in half again - you will be left with two bands linked together.



Few Notes From History:

The Mobius Strip or Band has in fact been around for hundreds of years. According to scientific reports and writings this is the story: the Mobius strip was named after astronomer and mathematician August Ferdinand Möbius (1790-1868), who was a professor at the University of Leipzig. It seems he devised his strip in September 1858, and published his discovery in 1865. Interestingly, it seems that coincidentally and separately a German mathematician called Johann Benedict Listing (1808-1882) is said also to have made the same discovery in July 1858, which he published in 1861 while working on theories of another great mathematician, Leonhard Euler

Puzzle - r u able to solve it?

Hi All,

let me know if u r able to solve this puzzle . You can use comments section for your solutions and replies.

The theoretical concept mentioned in the following url is overtaken...with a little bit of special touch/approach...

http://www.mathforum.org/dr.math/faq/faq.3utilities.html

so, let me know if u r able to solve this puzzle.

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Memorable Day-DS1... observe 2 mins silence please

memorable day....observe 2 mins silence

If you used to give more respect, you can also stand up.
kindly observe 2 mins silence for all those mosquitoes that bite you yesterday night. Because their survival became a question mark this morning at ICU due to heavy diabetes after biting you, because you are all cho sweeeeeet.

Concluding with a famous quote:
“Love does not begin and end the way we seem to think it does. Love is a battle, love is a war; love is a growing up.”
James Arthur Baldwin quotes (American Essayist, Playwright and Novelist, 1924-1987)

This novelist name has won a "Bald", so this has to be true experience.

Hacked: Email inboxes of Indian missions in US and China; NDA, DRDO officials too

Taking a dig at cyber security preparedness levels, a hacker, who claims to be based in Sweden, posted online on the evening of August 30,2007 the passwords of 100 email accounts of embassies and government offices across the world, including 13 Indian accounts, containing classified information and correspondence.

Top on the list of passwords that have been posted on http://derangedsecurity.com give access to email accounts of Indian Ambassadors to China, US, Sweden, Germany, Italy, Oman, Finland besides officials of the National Defence Academy (NDA) and Defence Research and Development Organisation (DRDO).

Other accounts include those of the embassies of Uzbekistan, Iran, Afghanistan, Pakistan, Japan, China, UK and Russia.

To check the authenticity, The Indian Express sent a test mail to the Indian Ambassador in China on her official email ID and, using the password posted online, was able to access it. The email account of the Indian Ambassador to China contained details of a visit by Rajya Sabha member Arjun Sengupta to Beijing earlier this month for an ILO conference. There was also a transcript of a meeting this evening which a senior Indian official had with the Chinese Foreign Minister.

Similarly, accounts of NDA and DRDO officials reveal phone numbers, commercial documents, official correspondence and personal mails. The account of the Indian embassy in Germany contains a query by two IIM (Calcutta) students about safety in the wake of recent racial abuse cases in West Germany.

While it remains unclear how the passwords were accessed by the hacker — he has posted his name on the website as Dan Egerstad from Malmo in Sweden and even gave contact details — Indian experts said that loopholes in POP (post office protocol) mail servers could have been exploited to gain access.

“A POP server that had not been updated for security could have been exploited by the hacker to get usernames and passwords,” said a cyber security expert who did not wish to be named.

Some Interesting & True Facts...

The Statue of Liberty's index finger is eight feet long

Rain has never been recorded in some parts of the Atacama Desert
in Chile

A 75 year old person will have slept about 23 years.

A boeing 747's wing span is longer than the Wright brother's
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There are as many chickens on earth as there are humans.

One type of hummingbird weighs less than a penny

The word "set" has the most number of definitions in the English
language;192

Slugs have four noses

Sharks can live up to 100 years

Mosquitos are more attracted to the color blue than any other
color.

Kangaroos can't walk backwards

About 75 acres of pizza are eaten in the U.S. everyday

The largest recorded snowflake was 15in wide and 8in thick. It
fell in Montana in 1887

The tip of a bullwhip moves so fast that the sound it makes is
actually a tiny sonic boom.

Former president Bill Clinton only sent 2 emails in his entire 8
year presidency

Koalas and humans are the only animals that have finger prints

There are 200,000,000 insects for every one human

It takes more calories to eat a piece of celery than the celery
had in it to begin with.

The world's largest Montessori school is in India , with 26,312
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The average person spends two weeks waiting for a traffic light
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Most cats are left pawed

250 people have fallen off the Leaning Tower of Pisa

A Blue whale's tongue weighs more than an elephant

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Bamboo can grow up to 3 ft in 24 hours

An eyeball weighs about 1 ounce

Bone is five times stronger than steel.

You cannot hold your laugh

You cannot hold your laugh................... Must Read.. :)

A little boy wanted Rs.50 very badly and prayed for weeks, but nothing happened. Finally he decided to write God a letter requesting the Rs.50.

When the postal authorities received the letter addressed to God, INDIA, they decided to forward it to the President of India as a joke.

The President was so amused, that he instructed his secretary to send the little boy Rs.20. The President thought this would appear to be a lot of money to a little boy, and he did not want to spoil the kid.

The little boy was delighted with Rs.20, and decided to write a thank you note to God, which read:

"Dear God: Thank you very much for sending the money. However, I noticed that you sent it through the 'Rashtrapati Bhavan in New Delhi', and those donkeys deducted Rs.30 in taxes ....."

TAX STRUCTURE IN INDIA.

TAX STRUCTURE IN INDIA............

Who said its complex....just check this out!!

1) Qus. : What are you doing ?
Ans. : Business.
Tax : PAY PROFESSIONAL TAX !

2) Qus. : What are you doing in Business ?
Ans. : Selling the Goods.
Tax : PAY SALES TAX !!

3) Qus. : From where are you getting Goods ?
Ans. : From other State/Abroad
Tax : PAY CENTRAL SALRES TAX, CUSTOM DUTY & OCTROI !

4) Qus. : What are you getting in Selling Goods?
Ans. : Profit.
Tax : PAY INCOME TAX !

5) Qus. : Where are you Manufacturing the Goods?
Ans. : Factory.
Tax : PAY EXCISE DUTY !

6) Qus. : Do you have Office / Warehouse/ Factory ?
Ans. : Yes
Tax : PAY MUNICIPAL & FIRE TAX !

7) Qus. : Do you have Staff ?
Ans. : Yes
Tax : PAY STAFF PROFESSIONAL TAX !

8) Qus. : Doing business in Millions ?
Ans. : Yes
Tax : PAY TURNOVER TAX !

9) Qus. : Are you taking out over 25,000 Cash from Bank ?
Ans. : Yes, for Salary.
Tax : PAY CASH HANDLING TAX !

10) Qus. : Where are you taking your client for Lunch & Dinner ?
Ans. : Hotel
Tax : PAY FOOD & ENTERTAINMENT TAX !

11) Qus. : Are you going Out of Station for Business ?
Ans. : Yes
Tax : PAY FRINGE BENEFIT TAX !

12) Qus. : Have you taken or given any Service/s ?
Ans. : Yes
Tax : PAY SERVICE TAX !

13) Qus. : How come you got such a Big Amount ?
Ans. : Gift on birthday.
Tax : PAY GIFT TAX !

14) Qus. : Do you have any Wealth ?
Ans. : Yes
Tax : PAY WEALTH TAX !

15) Qus. : To reduce Tension, for entertainment, where are you going?
Ans. : Cinema or Resort.
Tax : PAY ENTERTAINMENT TAX !

16) Qus. : Have you purchased House ?
Ans. : Yes
Tax : PAY STAMP DUTY & REGISTRATION FEE !

17) Qus. : How you Travel ?
Ans. : Bus
Tax : PAY SURCHARGE !

18) Qus. : Any Additional Tax ?
Ans. : Yes
Tax : PAY EDUCATIONAL, ADDITIONAL EDUCATIONAL &
SURCHARGE ON ALL THE CENTRAL GOVT.'s TAX !!!

19) Qus. : Delayed any time Paying Any Tax ?
Ans. : Yes
Tax : PAY INTEREST & PENALTY!