Karela Fry

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Who is warming the world?

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National per capita contributions to global warming. Colours indicate contributions above and below the world average, where read and orange indicate above, and yellow and gree below the world average of 0.11 Celsius per billion people.

National per capita contributions to global warming. Colours indicate contributions above and below the world average, where read and orange indicate above, and yellow and gree below the world average of 0.11 Celsius per billion people.

The map above shows that the largest contributions to global warming is made by people living in the USA, western Europe, including the UK, Cananda, Russia, Australia and New Zealand, Greenland, Iceland, Brazil, Argentina and many other countries in South America. People from India and China contribute below the global average. The data comes from a paper in Environmental Research Letters, in which the authors put this in a very roundabout way:

We show also that there are vast disparities in both total and per-capita climate contributions among countries, and that across most developed countries, per-capita contributions are not currently consistent with attempts to restrict global temperature change to less than 2 Celsius above pre-industrial temperatures.

In fact, the Candadian authors obfuscate the issue by producing a map which shows that per unit area of the world’s surface India and China are up there with western Europe and USA among the worst offenders, whereas Canada and Australia are clean as a whistle! It seems like the authors went looking for a criterion by which Canada could be shown to be better than China and India.

As is to be expected, western news media has reported this highly biased map. For extremely slanted news, see here, here, here and here.

Time to remind ourselves: land does not burn oil, people burn oil.

Written by Arhopala Bazaloides

January 19, 2014 at 3:56 pm

The Great Inventor

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Written by Arhopala Bazaloides

December 20, 2013 at 5:34 pm

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Cat vision

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Nikolay Lamm blogs:

[These photos] hypothesize what human and cat vision looks like. Human vision is up top and cat vision is below.

  • Cats have a visual field of 200 degrees compared to humans 180 degrees.
  • Peripheral vision for humans is 20 degrees each side. This is represented by the blurriness.
  • Peripheral vision for cats is 30 degrees each side. This is represented by the blurriness.
  • Cats can see 6-8 times better in dim light than humans due the high number of rods and because of their elliptical pupil, large cornea and tapetum.
  • Our retinas have many more cones than cats, especially in the area of the fovea (which is all cones and no rods). This gives us fantastic day vision with lots of vibrant colors and excellent, detailed resolution. Dogs and cats have many more rods, which enhances their ability to see in dim light and during the night. They have no fovea, but an “area centralis” that, though has more cones than other areas of the retina, still has more rods than cones. The increase in rods also enhances their “refresh rate”, so that they can pick up movements much faster (very helpful when dealing with small animals that change direction very quickly during a chase). These differences also help them to have great night vision, an excellent ability to pick up and follow quick movements, but at the cost of less vibrant color, with less detailed resolution. Interestingly, this also means that humans have the ability to see very slowly moving objects at speeds 10 times slower than cats (that is to say that we can see very slow things move that would not appear to be moving to a cat).

Written by Arhopala Bazaloides

October 18, 2013 at 5:10 pm

Highway robbery

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NDTV reports:

A group of men allegedly armed with chains, iron rods and hockey sticks assaulted staff and looted nearly two lakh from a toll booth near Delhi on Monday night.

Shortly after 8 pm on Monday, two bikers assaulted workers at the toll plaza for commercial vehicles. Around 30 minutes later, around a dozen men arrived on a bike and in a black Scorpio with a beacon and a politician’s poster on it. They beat up the attendants, ransacked the glass booth, and grabbed Rs. 1.85 lakh in cash and left.

“They were there for a long time, we called the police immediately but they came late. These men had belts, hockey, knuckles, chains and rods,” said Ravi, a worker.

The Gurgaon police, who have been accused of not responding promptly to the SOS from the toll plaza, are yet to comment on the act of brazen lawlessness.

You might begin to wonder where the Indian state has disappeared.

Written by Arhopala Bazaloides

October 17, 2013 at 5:17 am

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The grammar of art

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Nature reviews an exhibition based on a cognitive scientists’ study of dancers:

As with any scientific project, Kirsh began studying Random Dance by characterizing the different phenomena he saw “like a botanist”, he says. “I go out with six or seven high-definition video cameras, I put them around the studio floor and collect everything from the moment he introduces a dancer to the premiere weeks later.” He and a trained team of students then deciphered the different techniques for instruction and practice that they saw in the videos, in much the same way that primatologists characterize behaviour.

One phenomenon that caught Kirsh’s attention was ‘marking’, in which dancers in rehearsal elaborate only the basics of a dance movement. “It’s a lower-energy version; they won’t stretch as far; they won’t have the emotional force in it. It’s a way to avoid injury and because you can’t dance for five hours after two hours of exercises warming up,” Kirsh says.

But as he discovered when conducting a controlled experiment, there is more to it. He showed dancers a new routine, gave them time to learn the moves, and divided them into three groups to practise again. One group performed the full movements, a second marked them, and a third lay down and imagined themselves performing the dance. To Kirsh’s surprise, the dancers who marked the routine executed it most faithfully later. “Nobody predicted this,” he says. “This is the hint at a theory of practising, and now it’s open to study this much more carefully to understand how people focus on aspects of what they’re practising.” The experiment, he feels, is evidence of physical activity influencing thought.

On the basis of his work with Random Dance, Kirsh has published research papers on interaction design, McGregor’s creative process and a phenomenon that he calls distributed memory, in which dancers remember dozens of complicated movements through physical cues from other dancers. McGregor, too, has gained from their collaboration. When he instructs dancers and other young choreographers, he now uses terms that Kirsh devised, such as ‘sonifications’ — sounds that choreographers make to guide how a dancer shapes a move, such as “yah ooh ehh”. Kirsh notes, “Now that the term has been named, the phenomenon is clear.”

This reminded me of the studies by the pioneering Indian computer scientist R. Narasimhan on oral notations in Indian tradition: of the art of Kollam, and of tabla bols. I had heard a detailed exposition by him on the syntax of bols in a colloquium in the mid 1980s. The only surviving printed record seems to be in a booklet called Characterizing Literacy: A Study of Western and Indian Literacy Experiences by R. Narasimhan, published by Sage. His discussion of the usage of bols by players of the tabla seem to be equivalent to the notion of “sonification”, and predates it by a few decades.

Written by Arhopala Bazaloides

October 15, 2013 at 7:04 pm

Apparent sizes

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Wonderful visual thinking from xkcd

Written by Arhopala Bazaloides

October 14, 2013 at 4:59 pm

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2013 Nobel Prize in Economics

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A press release from the Nobel Foundation reads:

There is no way to predict the price of stocks and bonds over the next few days or weeks. But it is quite possible to foresee the broad course of these prices over longer periods, such as the next three to five years. These findings, which might seem both surprising and contradictory, were made and analyzed by this year’s Laureates, Eugene Fama, Lars Peter Hansen and Robert Shiller.

Beginning in the 1960s, Eugene Fama and several collaborators demonstrated that stock prices are extremely difficult to predict in the short run, and that new information is very quickly incorporated into prices. These findings not only had a profound impact on subsequent research but also changed market practice. The emergence of so-called index funds in stock markets all over the world is a prominent example.

If prices are nearly impossible to predict over days or weeks, then shouldn’t they be even harder to predict over several years? The answer is no, as Robert Shiller discovered in the early 1980s. He found that stock prices fluctuate much more than corporate dividends, and that the ratio of prices to dividends tends to fall when it is high, and to increase when it is low. This pattern holds not only for stocks, but also for bonds and other assets.

There is no way to predict the price of stocks and bonds over the next few days or weeks. But it is quite possible to foresee the broad course of these prices over longer periods, such as the next three to five years. These findings, which might seem both surprising and contradictory, were made and analyzed by this year’s Laureates, Eugene Fama, Lars Peter Hansen and Robert Shiller.

Beginning in the 1960s, Eugene Fama and several collaborators demonstrated that stock prices are extremely difficult to predict in the short run, and that new information is very quickly incorporated into prices. These findings not only had a profound impact on subsequent research but also changed market practice. The emergence of so-called index funds in stock markets all over the world is a prominent example.

If prices are nearly impossible to predict over days or weeks, then shouldn’t they be even harder to predict over several years? The answer is no, as Robert Shiller discovered in the early 1980s. He found that stock prices fluctuate much more than corporate dividends, and that the ratio of prices to dividends tends to fall when it is high, and to increase when it is low. This pattern holds not only for stocks, but also for bonds and other assets.

One approach interprets these findings in terms of the response by rational investors to uncertainty in prices. High future returns are then viewed as compensation for holding risky assets during unusually risky times. Lars Peter Hansen developed a statistical method that is particularly well suited to testing rational theories of asset pricing. Using this method, Hansen and other researchers have found that modifications of these theories go a long way toward explaining asset prices.

Prizes in 2013: Physiology and medicine, Physics, Chemistry, literature, Peace, and Economics.

Written by Arhopala Bazaloides

October 14, 2013 at 4:37 pm

Cyclone Phailin

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Cyclone Phailin: imaged by IMD at 8:30 AM on 11 October, 2013.

Cyclone Phailin: imaged by IMD at 8:30 AM on 11 October, 2013.

Quartz claims:

An atmospheric beast is forming in the Bay of Bengal and heading straight for India. Cyclone Phailin—pronounced pie-leen; it’s a Thai word for “sapphire”—has exploded from tropical storm strength to potentially the equivalent of a category 5 hurricane.

While bracing for the super cyclone, you can use Z News:

Odisha has opened control rooms for the cyclone. The helpline number of the Odisha Central Control Room is 0674-2534177, PTI report.

The district control room mumbers are :

Mayurbhanj 06792-252759, Jajpur 06728-222648, Gajapati 06815-222943, Dhenkanal 06762-221376, Khurda 06755-220002, Keonjhar 06766-255437, Cuttack 0671-2507842, Ganjam 06811-263978, Puri 06752-223237, Kendrapara 06727-232803, Jagatsinghpur 06724-220368, Balasore 06782-262674, Bhadrak 06784-251881.

IE quoted:

“We expect that the cyclone Phailin will make landfall at about 6 pm on Saturday, October 12,” Dr Mrutunjay Mohapatra, Chief of India’s Cyclone Warning Division, said.

Elsewhere IE quoted IMD officials saying that Cyclone Phailin will be the worst storm since 1999:

Cyclone Phailin, the strongest cyclone to form on the Indian seas this year, Thursday moved closer to Orissa coast, bringing back memories of the 1999 supercyclone as Chief Minister Naveen Patnaik wrote to Union Defence Minister A K Antony seeking assistance from the IAF and Navy for relief and rescue operations.

Phailin, which was formed over North Andaman sea two days ago as a low pressure area, Thursday developed into a severe cyclonic storm with a well-marked eye in its centre as it moved northwestwards. Met Department officials in Bhubaneswar said Phailin would continue to move northwestwards and make landfall close to Gopalpur on sea in Ganjam district, which will bear the cyclone’s brunt, by Saturday evening. By the time Phailin hits the coast, it would have a maximum sustained wind speed of 175-185 km/hour, with gusts reaching up to 200 km/hour. “In comparison to the 1999 supercyclone, Phailin is just a notch below. We expect it to wreak massive damage after hitting the coast,” an official said.

In 1999, almost 10,000 people died and 19 lakh houses were damaged in 14 districts.

Far away, in Mumbai, on the other side of India, the skies are overcast and there is an occasional drizzle. HT reports:

Days ahead of Dussehra, a widely celebrated festival in the region, government officials are getting ready for rescue and relief operations in the coastal districts.

The Odisha government had already cancelled the Durga Puja holidays of employees in all districts.

Around 600 cyclone shelters have been set up in Orissa and are being stocked up with dry and cooked food as well as medicines.

The Odisha Disaster Rapid Action Force has been deployed while the armed forces are on standby.

Using trucks and buses, authorities evacuated 40,000 people from 40 villages to government-run shelters, schools and buildings in five districts of Orissa state, said Surya Narayan Patra, the state revenue and disaster management minister.

Patra said authorities plan to take another 100,000 people to safer areas before the cyclone hits the region. “No one will be allowed to stay in mud and thatched houses in the coastal areas,” he said.

Authorities also planned to shift thousands of people and cattle to safer areas in neighboring Andhra Pradesh state, the state government statement said.

DNA reported:

12 IAF helicopters will arrive in state tomorrow, says special relief commissioner PK Mohapatra. 300 Army jawans, 50 doctors from Navy and 29 rescue teams will arrive in state tomorrow, he added. Evacuation of 6 lakh people from 7 districts is going on. Cooked food will be provided from tonight [11 Oct], says special relief commissioner PK Mohapatra.

As many as 64,000 people in the north coastal districts of Srikakulam, Vizianagaram, Visakhapatnam in Andhra Pradesh are being evacuated to safer places.

Washington Post carries this report:

The storm is the equivalent of a category 5 hurricane, which comes with these kinds of impacts, according to the National Hurricane Center:

A high percentage of framed homes will be destroyed, with total roof failure and wall collapse. Fallen trees and power poles will isolate residential areas. Power outages will last for weeks to possibly months. Most of the area will be uninhabitable for weeks or months.

“A Category 5 (equivalent) landfall on that region will be unimaginable,” says Brian McNoldy, Capital Weather Gang tropical weather expert.

By far, the greatest threat from Phailin is its storm surge. When the storm makes a landfall, it is likely to push ashore a devastating wall of water up to 20 feet high just north of its center, inundating vast, highly-populated areas.

A storm surge disaster is practically unavoidable writes Hal Needham, a research climatologist and storm surge specialist on staff at Louisiana State University.

“The storm conditions 18 hours before landfall tend to correlate best with storm surge heights,” writes Needham. “This means essentially that a catastrophic storm surge is a certainty given the forecast intensity and size at 18 hours before landfall”

Needham adds: “Tropical Cyclone Phailin has the potential to generate a surge at least 6 meters (20 feet) high.”

HT added:

The warning brought back memories of a killer cyclone which left nearly 10,000 people dead in 1999 and caused widespread devastation whose effects are felt by the state even now.

This time, however, the state government sought to calm fears and said it was better prepared. It broadcast cyclone warnings through loudspeakers and on radio and television as the first winds were felt on the coast and in the state capital, Bhubaneswar. Army and disaster management teams are on the standby to help in evacuation and rescue measures.

Union home secretary said nearly 12 million people will be affected by the cyclone.

Cyclone Phailin preparedness infographic

October 13, 2013

About 12 hours after the storm struck, DNA reported:

National Disaster Management Authority (NDMA) vice-chairman M Shashidhar Reddy said as per preliminary reports, situation in Gopalpur in Odisha’s Ganjam district appeared to be encouraging and the wind-speed has come down significantly and the National Disaster Response Force was trying to asses the damage there.

“Wind speed in Gopalpur where the eye of the cyclone passed through has come down to 90-100 kmph at 8 am. We are still trying to assess the devastation caused by the disaster,” he told PTI here.

According to M Mohapatra, Scientist (Cyclone Warning) with the IMD, by 5.30 am on Sunday morning the cyclone started showing signs of weakening with the wind speed reducing to 160-170 kmph.

He however, added that it is still a “very severe cyclonic storm”.

Z News reports a startling casualty figure:

The death toll due to Cyclone Phailin is feared to have gone up to 15 with more bodies reported to have been found in Ganjam district of Odisha. Police said two bodies each were found in Berhampur town, Purosottampur, Ganjam town and Rangelilunda areas.

Considering that counts of deaths in 1999 ranged from around 10,000 to 45,000, the disaster preparedness is startling. Part of the reason may be that it will be some time before communications are restored. But part is due to the enormous improvement in storm prediction in the Bay of Bengal. Post landfall prediction is harder, so there may eventually be more casualties from neighbouring states.

HT reported:

Operations to rescue those trapped under the debris are on in Odisha and Andhra Pradesh, where more than 3,000 personnel of NDRF have been deployed.

Meanwhile, authorities are struggling to restore power supplies and telecommunication links as the winds snapped thousands of trees and poles, while buildings and some communication towers were destroyed. Before Phailin made landfall on Saturday, power supplies were shut down as a precaution.

The remnants of the storm are likely to dump “heavy to very heavy rains” across Jharkhand and Chhattisgarh in the next 24 hours. Parts of Madhya Pradesh, Bihar, West Bengal and Uttar Pradesh were also expected to see heavy rainfall.

Authorities in Odisha were assessing the damage that Phailin would have caused overnight before moving inland, but their task was complicated by a prolonged power shutdown and snapping of telephone services in the affected areas.

Eye witness reports said the powerful winds on Saturday snapped trees like matchsticks and swept away rooftops besides flattening paddy crop across a large swathe of farmland. Heavy damage is feared in Odisha’s Ganjam district and the coastal stretch between Andhra towns of Kalingapatnam and Ichapuram.

Odisha’s top rescue official said 860,000 people moved before the cyclone made landfall on Saturday evening, while at least another 100,000 were evacuated further south in the state of Andhra Pradesh. Residents were also evacuated from coastal regions of West Bengal.

The government had said on Saturday evening that some 550,000 people had been evacuated but efforts to persuade people to flee to safer areas continued until shortly before Phailin made landfall at around 9pm.

About 6.5 lakh people were evacuated from the storm’s path, in what is said to be the biggest peacetime human movement in the country in 23 years. More than 1,700 soldiers besides rescue teams from the navy were kept on standby for emergencies.

October 14, 2013

Two days later, this is what BS had to report:

Although damage to property was estimated at several crores of rupees, loss of human lives was minimal in comparison to the 1999 super cyclone, in which more than 10,000 people died.

Officials said the latest cyclone and flooding has caused 21 deaths so far. The low casualty figure this time was because of timely evacuation of affected areas, following accurate predictions from the weather office, officials said.

This example could be a turning point in the relation between the government and the electors in India.

Written by Arhopala Bazaloides

October 11, 2013 at 9:47 am

2013 Nobel Prize for Peace

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The Nobel Foundation announced today through a press release:

The Norwegian Nobel Committee has decided that the Nobel Peace Prize for 2013 is to be awarded to the Organization for the Prohibition of Chemical Weapons (OPCW) for its extensive efforts to eliminate chemical weapons.

During World War One, chemical weapons were used to a considerable degree. The Geneva Convention of 1925 prohibited the use, but not the production or storage, of chemical weapons. During World War Two, chemical means were employed in Hitler’s mass exterminations. Chemical weapons have subsequently been put to use on numerous occasions by both states and terrorists. In 1992-93 a convention was drawn up prohibiting also the production and storage of such weapons. It came into force in 1997. Since then the OPCW has, through inspections, destruction and by other means, sought the implementation of the convention. 189 states have acceded to the convention to date.

The conventions and the work of the OPCW have defined the use of chemical weapons as a taboo under international law. Recent events in Syria, where chemical weapons have again been put to use, have underlined the need to enhance the efforts to do away with such weapons. Some states are still not members of the OPCW. Certain states have not observed the deadline, which was April 2012, for destroying their chemical weapons. This applies especially to the USA and Russia.

Prizes in 2013: Physiology and medicine, Physics, Chemistry, literature, Peace, and Economics.

Written by Arhopala Bazaloides

October 11, 2013 at 9:20 am

An alternative zoology

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These pictures are the result of two animal photos being morphed together. Here: a purd. Norwegian student Arne Olav first created the pictures as a distraction from a hectic exam period, gaining inspiration from his friend’s guinea pigs.

Written by Arhopala Bazaloides

October 10, 2013 at 3:42 pm

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