Archive for the ‘Trivia’ Category

A short hiatus in warmer climes

December 8, 2012

Here in Sweden we are in the depths of winter and the days are getting pretty short. Sunrise is at 0834 today and sunset at 1503.

Still, in another two weeks the days will start getting longer again.

It’s been down to -20 °C and we have had our share of snow which needed some not inconsiderable shovelling but I probably needed the exercise.

Blogging will be very light for a week as I travel on an assignment to somewhat warmer climes.

I plan to be back before THE END OF THE WORLD.

Must be global warming

Must be global warming

Diwali lights are not visible from space

December 6, 2012

I have posted earlier about the composite image from 2003 but taken over many years and which has purported to be an image of India during Diwali but which was not.

Now a real image actually taken of South Asia on Diwali night (November 12th/13th) this year has been released by NASA and they write: In reality, any extra light produced during Diwali is so subtle that it is likely imperceptible when observed from space”.

India 20121112 Diwali NASA

NASA reports: 

Every fall, Hindus around the world light lamps, candles, and firecrackers as part of a five-day festival known as Diwali. The celebration, which has roots as a harvest festival, usually falls between mid-October and mid-November. In 2012, it began on November 11.

On November 12, 2012, the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite captured this nighttime view of southern Asia. The image is based on data collected by the VIIRS “day-night band,” which detects light in a range of wavelengths from green to near-infrared. The image has been brightened to make the city lights easier to distinguish.

Most of the bright areas are cities and towns in India, the country with the world’s largest Hindu population. India is home to more than 1.2 billion people and has 30 cities with populations over 1 million. (For comparison, China has 62 cities with more than 1 million residents and the United States has 9). Cities in Bangladesh, Nepal, and Pakistan are also visible near the edges of the image.

An image that claims to show the region lit for Diwali has been circulating on social media websites and the Internet in recent years. In fact, it does not show what it claims. That image, based on data from the Operational Linescan System flown on U.S. Defense Meteorological Satellite Program (DMSP) satellites, is a color-composite created in 2003 by NOAA scientist Chris Elvidge to highlight population growth over time. In that image, white areas show city lights that were visible prior to 1992, while blue, green, and red shades indicate city lights that became visible in 1992, 1998, and 2003 respectively.

In reality, any extra light produced during Diwali is so subtle that it is likely imperceptible when observed from space.

Anamorphic Rubik’s cube and other illusions

December 2, 2012

Illusions on a Sunday morning:

Anamorphosis is a distorted projection or perspective requiring the viewer to use special devices or occupy a specific vantage point to reconstitute the image. The word “anamorphosis” is derived from the Greek prefix ana-, meaning back or again, and the word morphe, meaning shape or form.

These were created by Brusspup

Scroll down for how it is done.

From Colossal:

The trick is pretty simple: the photographs are skewed but then filmed at an angle where everything looks normal, but when the illusion is revealed it’s still pretty mind-bending. Brusspup also provided downloadable high resolution files of the Rubik’s cube, shoe, and tape so you can print them out on 8×11″ paper, trim, and try for yourself. 

The India “Diwali night” photograph – that wasn’t

November 23, 2012

I received this 5 times by email.

The picture purports to be from NASA of Diwali night as seen from space. (This year Diwali was on 13th November).

It is indeed from NASA, it is from space and it is at night. But it is not on a Diwali night and is actually a composite picture of night illumination over many years to try and show population increase. Even the colours are not real. It was circulated widely at this time last year as well. But as Robert Johnson of Business Insider points out:

The photo is an overlay of shots highlighting India’s burgeoning population over several years. The white lights were the only illumination visible before 1992. The blue lights appeared in 1992. The green lights in 1998. And the red lights appeared in 2003.

Current speculation suggests the lights are a result of the Hindu celebration Diwali, or the celebration of lights, held from mid-October to mid-November, but NASA was unable to confirm what time of year the shots were taken.

…. NASA says there are no more recent versions available.

India composite – image ngdc.noaa.gov

original image:

high res image

“Undiscovery” of Sandy Island in the Coral Sea – or “Now you see it, now you don’t”

November 22, 2012

There are no good antonyms in English for the verb “discover”. In this particular case where an island was apparently “discovered” a long time ago, which was then included on many maps and which is now found not to exist, such words as “loss” or “concealment” or “miss” or “cover up” don’t quite fit.

But in this age of satellite imagery and GPS it is more than a little surprising that such an “error” – if error it was – could survive for so long!

I suspect that a clever hoaxer  – once upon a time – invented the island, introduced it into some reference map and is now laughing his socks off !!!!

So an “undiscovery” it is.

BBC reports:

A South Pacific island, shown on marine charts and world maps as well as on Google Earth and Google Maps, does not exist, Australian scientists say.

The supposedly sizeable strip of land, named Sandy Island on Google maps, was positioned midway between Australia and French-governed New Caledonia.

Sandy Island – “Now you see it now you don’t” image BBC/Google

But when scientists from the University of Sydney went to the area, they found only the blue ocean of the Coral Sea.

The phantom island has featured in publications for at least a decade.

Scientist Maria Seton, who was on the ship, said that the team was expecting land, not 1,400m (4,620ft) of deep ocean.

“We wanted to check it out because the navigation charts on board the ship showed a water depth of 1,400m in that area – very deep,” Dr Seton, from the University of Sydney, told the AFP news agency after the 25-day voyage.

“It’s on Google Earth and other maps so we went to check and there was no island. We’re really puzzled. It’s quite bizarre. ……

…… Australia’s Hydrographic Service, which produces the country’s nautical charts, says its appearance on some scientific maps and Google Earth could just be the result of human error, repeated down the years.

A spokesman from the service told Australian newspapers that while some map makers intentionally include phantom streets to prevent copyright infringements, that was was not usually the case with nautical charts because it would reduce confidence in them. ….  ….. while most explorers dream of discovering uncharted territory, the Australian team appears to have done the opposite – and cartographers everywhere are now rushing to undiscover Sandy Island for ever.

Happy Diwali

November 12, 2012

image from the archbishop of canterbury

Greetings even from the new Archbishop!

Albert Einstein – Marilyn Monroe

November 12, 2012

From http://ilusoesoptica.blogspot.se

Albert close up – Marilyn from a distance Image: http://ilusoesoptica.blogspot.se

Cut out one hour of watching TV and you can smoke two extra cigarettes!

November 2, 2012

An Australian group of scientists have published the results of a new study in the October issue of The British Journal of Sports Medicine.

This then passes for “scientific research”!!!

From the New York Times:

…. Every single hour of television watched after the age of 25 reduces the viewer’s life expectancy by 21.8 minutes.

By comparison, smoking a single cigarette reduces life expectancy by about 11 minutes, the authors said. ……

Ah well! They are scientists, probably wear white coats and could not possibly be idiots.

Twits tweet

November 1, 2012

twit – A silly or foolish person.
to twit – to be in a state of nervous excitement: “we’re in a twit about your visit”

Are all tweeters twits? Is it only twits who tweet?

But there are many types of tweeters:

  1. Low-life tweeters who merely follow: They are rarely interesting except in contributing to trends. This group includes journalists and groupies. Journalists sift through tweets as if rummaging through dustbins looking for a scoop. For groupies there is the delusion of participation; instant and vicarious gratification. Twits
  2. Rich and famous tweeters: These are the people who need their egos to be constantly fed, who must live in the public eye and need reassurance that their fame still lives. They live in perpetual fear of the loss of their fame. Twits
  3. Politicians: They think that their expositions of political policy in 140 characters or less can get them re-elected or make them popular or can get out the young vote or ……..? Twits
  4. Activists, revolutionaries and rabble-rousers: They hunt for subjects to hang their punch lines onto. Success is in getting a trend going or getting a flash mob together. Twits
  5. Would be socialites and socialists. They set up their stalls in the hope that their 140 characters will be perceived as funny, witty, sexy, profound or insightful. They are easily gratified and are quite happy to have manged to expand a thought into something as long as 140 characters. Twits
  6. Corporate tweeters: These are usually overpaid and underworked PR types or advertisers selling something (usually something quite unnecessary) and who live in a fantasy of creating a “hit” or a “best-seller” in 140 characters or less. Twits
  7. Updates
    1. Re-tweeters: Who have nothing original to say for themselves but who try to remain in the thick of things by re-tweeting. Twits

I am unable to find a category of tweeters who could be considered high-class.

There may be tweeters who are not twits. But that remains to be demonstrated. The empirical evidence suggests that all tweeters are twits.

My hypothesis is that only twits tweet. 

“The medium is the message” – Marshall McLuhan

Perhaps the message of the Twitter medium is that the tweeter is a twit.

Idle thoughts: On time and change and states of stasis

October 13, 2012

Idle thoughts:

The riddle of whether change and time are interrelated or independent. And which comes first? Within our cosmos perhaps we have many different states of stasis with paths by which these states can be connected. Our universe could then just be one specific change journey, on one particular path between two states of stasis along an axis of change. Perhaps time begins after change gets going. Where the change journey started with the Big Bang and where the end will be in another state of stasis at the end of time – and the end of change.  

Time and change and states of stasis (pdf)

The Cosmos