Image of the Day….FireFlies over Sky…!!!

Fireflies are back, upstate New York

Photo and report from an EarthSky friend who regularly watches for them.

View larger. | Fireflies in northern spring 2015 by Matt Pollock .

Here’s the first firefly photo we’ve seen so far this year. Matt Pollock in the town of Brunswick in upstate New York posted it at EarthSky Facebook this week (May 27, 2015). He wrote:

Each year as part of my planned outings I include the return of the fireflies. It seems they have come early this year and in great abundance. Last night it never dropped much below 70 degrees F and hot nights in deep grass is their favorite breeding time and place. Typically, the females climb up on the tips of the grass and signal to the males who search around in roving packs from above. I think I learned something interesting last night. When its windy, The males fly low when going upwind, then climb rapidly and let the wind cast them over the grass tops as they search for their mates. If they see one flashing, they drop like a meteor then hover (often in groups) and signal to the ladies below.

I set up my camera low to the ground, just above the grass tops and ran a time lapse. Each time the camera took a picture, the green LED would flash a few times indicating it was taking another photograph. At one point, I think a group saw this and decided to check it out. As I sat in the grass a few feet away, a cluster of them upwind from the setup suddenly rose and dive bombed the camera. Some of them actually came within inches of the lens.

I had the Fstop set for F/2.8 and focused at infinity at a focal length of 24mm with the hopes of catching the core of the Milky Way so the depth of field was fairly narrow and and field of view fairly wide. As can be seen they came in close enough to be pretty blurry and large considering that even something close to the lens is smaller than normal.

As is often the case, the cloud cover prevented any capture of galactic core, but for a brief interval you could see Sagittarius and the “Teapot” asterism which looked almost like lightning bolts coming out of its center. Next time I will pick the midpoint for focus but overall I am pleased with what I got. I thoroughly enjoyed being out there and watching the annual show and will be looking for more of them until the fields are cut and they move on again until next year.

By the way, fireflies have an organic compound in their abdomens called luciferin. As air rushes into the abdomen, a chemical reaction gives off the firefly’s familiar glow. Read more: Why do fireflies light up?

Bottom line: First firefly photo we’ve seen this year, from Matt Pollock in upstate New York.

Source….www.earthsky.org

Natarajan

 

image of the Day… Sunset Sequence in Mars…!!!

Sunset on Mars

NASA’s Curiosity Mars rover recorded this sequence of views of the sun setting at the close of the mission’s 956th Martian day, or sol (April 15, 2015), from the rover’s location in Gale Crater.

The four images shown in sequence here were taken over a span of 6 minutes, 51 seconds.

This was the first sunset observed in color by Curiosity.  The images come from the left-eye camera of the rover’s Mast Camera (Mastcam). The color has been calibrated and white-balanced to remove camera artifacts. Mastcam sees color very similarly to what human eyes see, although it is actually a little less sensitive to blue than people are.

Dust in the Martian atmosphere has fine particles that permit blue light to penetrate the atmosphere more efficiently than longer-wavelength colors.  That causes the blue colors in the mixed light coming from the sun to stay closer to sun’s part of the sky, compared to the wider scattering of yellow and red colors. The effect is most pronounced near sunset, when light from the sun passes through a longer path in the atmosphere than it does at mid-day.

Malin Space Science Systems, San Diego, built and operates the rover’s Mastcam. NASA’s Jet Propulsion Laboratory, a division of the California Institute of Technology, Pasadena, manages the Mars Science Laboratory Project for NASA’s Science Mission Directorate, Washington. JPL designed and built the project’s Curiosity rover.  For more information about Curiosity, visit http://www.nasa.gov/msl and http://mars.jpl.nasa.gov/msl.

Credit: NASA/JPL-Caltech/MSSS/Texas A&M Univ.

Source……www.nasa.gov

Leaf People…Branch People….and Root People….

A beautiful analogy��
I have this tree analogy when
I think of people in my life, be it friends , family, acquaintances, employees, co-workers, whomever… They­ are all placed inside what I call my tree test.
It goes like this:

LEAF PEOPLE
Some people come into your life and they are like leaves on a tree. They are only there for a season. You can’t depend on them or count on them because they are weak and only there to give you shade. Like leaves, they are there to take what they need and as soon as it gets cold or a wind blows in your life they are gone. You can’t be angry at them, it’s just who they are.������

BRANCH PEOPLE
There are some people who come into your life and they are like branches on a tree. They are stronger than leaves, but you have to be careful with them. They will stick around through most seasons, but if you go through a storm or two in your life it’s possible that you could lose them. Most times they break away when it’s tough. Although they are stronger than leaves, you have to test them out before you run out there and put all your weight on them. In most cases they can’t handle too much weight. But again, you can’t be mad with them, it’s just who they are.�� 

ROOT PEOPLE
If you can find some people in your life who are like the roots of a tree then you have found something special. Like the roots of a tree, they are hard to find because they are not trying to be seen. Their only job is to hold you up and help you live a strong and healthy life. If you thrive, they are happy. They stay low key and don’t let the world know that they are there. And if you go through an awful storm they will hold you up. Their job is to hold you up, come what may, and to nourish you, feed you and water you.�� 
Source……input from a friend of mine
Natarajan

Why We Say ” O’ Clock ” ….?

The practice of saying “o’clock” is simply a remnant of simpler times when clocks weren’t very prevalent and people told time by a variety of means, depending on where they were and what references were available.

clock

Generally, of course, the Sun was used as a reference point, with solar time being slightly different than clock time. Clocks divide the time evenly, whereas, by solar time, hour lengths vary somewhat based on a variety of factors, like what season it is.

Thus, to distinguish the fact that one was referencing a clock’s time, rather than something like a sundial, as early as the fourteenth century one would say something like, “It is six of the clock,” which later got slurred down to “six o’clock” sometime around the sixteenth or seventeenth centuries. In those centuries, it was also somewhat common to just drop the “o’” altogether and just say something like “six clock.”

Using the form of “o’clock” particularly increased in popularity around the eighteenth century when it became common to do a similar slurring in the names of many things such as “Will-o’-the wisp” from “Will of the wisp” (stemming from a legend of an evil blacksmith named Will Smith, with “wisp” meaning “torch”) and “Jack-o’-lantern” from “Jack of the lantern” (which originally just meant “man of the lantern” with “Jack,” at the time, being the generic “any man” name. Later, either this or the Irish legend of “Stingy Jack” got this name transferred to referring to carved pumpkins with lit candles inside).

While today with clocks being ubiquitous and few people, if anybody, telling direct time by the Sun, it isn’t necessary in most cases to specify we are referencing time from clocks, but the practice of saying “o’clock” has stuck around anyway.

Source….www.today i foundout.com

Natarajan

Meet Abhishek Singhania …an IIT Madras Graduate who works with Farmers…

Indrani Roy/Rediff.com meets Abhishek Singhania who left a bright career at PricewaterhouseCoopers, Mumbai, to work in a food security project at Khentia village in Bengal, as a research fellow.

Abhishek Singhania with farmers

Image: Abhishek Singhania (standing extreme right clockwise). Photograph: Dipak Chakraborty/Rediff.com

Abhishek Singhania is a strange young man. Graduating in metallurgy from Indian Institute of Technology – Madras in 2012, he got himself a dream job of a consultant at PricewaterhouseCoopers, Mumbai. But unlike the youngsters of his age, the cushy job that fetched him Rs 90K per month failed to satisfy him.

Instead, he wanted to dedicate his time to a job more meaningful, an endeavour that would have a direct and positive impact on the growth of India.

“I should be working with farmers instead,” Abhishek told himself.

A few months into his job at PwC, he was sent to Jeddah, Saudi Arabia, for six months on an assignment.

“There was no problem with the consultant’s job as such but an inner voice kept pestering me that I was not meant for this. I needed to do something else,” Abhishek told rediff.com.

“I started thinking deeply about my career and my future.

“I was not sure if I would continue with my job at PwC or join the automobile sector (I am passionate about cars) or agriculture,” Abhishek said.

“It was around this time that I started preparing for Graduate Record Examinations but soon lost interest.

“For some time, I have been reading reports of farmers’ suicides and they have perturbed me a lot,” Abhishek said.

“I thought if technical people like us can train these farmers, it can lead to better production and lesser suicides”.

Abhishek returned to India from Jeddah in June 2014.

He took a break from office and visited Temathani village near Kharagpur.

“I met the farmers there and discussed the problems that they face,” Abhishek said.

“I was taken aback by their sheer lack of knowledge,” he said.

“I could understand that they did not know how to treat the soil with right kind of fertilisers for higher production.

“I also realised that the farmers did not know how to save their crops from pests.

Abhishek Singhania (extreme right clockwise) experimenting with biochar

Abhishek Singhania (standing extreme right clockwise) experimenting with biochar. Photograph: Kind courtesy, Abhishek Singhania

“I came to know that they were often using the wrong pesticides that caused more harm to the soil than good.

One fine morning, Abhishek came to IIT Kharagpur from Temathani.

“I knew that this IIT alone has an agriculture department and food technology schools.

“I heard from a cousin of mine, who is a student here, that Dr PBS Bhadoria and Dr Dilip Kumar Swain, were doing a food security project here.

“When I met them they said a project is expected to take off soon in a village nearby.

They, however, could not give me a timeline. ”

In December, Abhishek resigned from PwC and went to Pondicherry to take a look at some organic farms and startups there.

The biochar is made

Image: The biochar is made. Photograph: Kind courtesy, Abhishek Singhania

“I was integrating within me all the necessary information about agriculture,” Abhishek said.

He revisited Kharagpur IIT in February end and after a second round of discussion with Bhadoria and Swain, he decided to join, as a research fellow, the duo’s Food Security Project at Khentia village located 10 km from the institute.

The fact that his stipend would now be a meagre 15K a month did not deter Abhishek even once.

“Rather, I was happy to have finally made up my mind”, he told rediff.com.

Now, Abhishek spends hours with farmers of Khentia village, teaching them essential skills of farming.

Under this project, a barren 14 acres of land has been ‘adopted’ from 14 farmers by the IIT team.

In a collaborative approach, wherein the farmers give free labour and the IIT team the technical knowhow, the land has been treated and made ready for cultivation.

Irrigation system has been revamped and the farmers can now produce rice for their own consumption (earlier they needed to buy rice from the market).

Riding on the success of abundant production of rice, Abhishek’s team has taught the Khentia farmers to produce soyabean, sweet corn, peanut and sesame.

“Target of our project is to make these farmers self-sufficent so that apart from growing their food themselves, they can enhance their income by selling the cash crops to the retail market.

The IIT team plans to give hands on training to the farmers only for a year and once the team feels that the farmers are confident and skilled enough to run the show themselves, the team will move out to other villages of Kharagpur to replicate the same project there.

Abhishek Singhania with a dhenki

Abhishek Singhania poses with a dhenki, machine used by rural folks to produce rice from paddy. Photograph: Dipak Chakraborty/Rediff.com

Abhishek leads the team of trainers from the IIT that keeps visiting the farmers regularly.

At present, he has his hands full making a sustainable farming-cum-marketing model so that once the IIT team leaves Khentia, the farmers there can do everything on their own.

“We want the farmers to form a cooperative that will work towards their interests and well being,” Abhishek told rediff.com.

Abhishek is also making environment-friendly biochar and biogas for the Khentia farmers.

“Generally the farmers burn the plant residue on the field after harvesting. In the process, most of the carbon from the plants get transferred back to the atmosphere in the form of carbon dioxide, carbon monoxide, methane, etc thereby increasing global warming,” Abhishek said.

“Instead, if we do pyrolysis in controlled conditions, we can retain a substantial amount of the carbon in the final product (biochar).

“Biochar increases soil fertility and has many other advantages.

“Our primary aim is to develop an ideal setup for producing biochar which should be simple so that farmers can operate it, it should be inexpensive and should have high efficiency.

“Till now we have done five experiments with 3 different set ups.”

“If my experiments on these products is successful here, I’ll carry them to other villages as well,” he told rediff.com.

As he guided us around the Khentia village in the scorching May heat, sweats covered Abhishek’s forehead.

But his smile spoke for itself how much he enjoyed this new assignment of his.

Isn’t this rigorous farm work tiring?

“Na didi, it’s fun. I had always dreamt about doing something meaningful in life. After a long wait, I have got an opportunity to follow my dream,” said a beaming Abhishek.

Abhishek Singhania poses with a rice storage container

Abhishek Singhania poses with a rice storage container. Photograph: Dipak Chakraborty/Rediff.com

Once his research at IIT-Kharagpur gets over, Abhishek wants to set up a firm that will lend technical assistance towards integrated farming.

After completing his research, Abhishek wants to travel to villages all over Bengal to interact with farmers and share his experience and knowledge with them.

“At present, with the current population, implementation of National Food Security Act requires 61 metric tones of foodgrains annually,” said Abhishek.

“Moreover, India needs to double its agricultural productivity by 2040 to reduce the supply and demand gap.”

These statistics, Abhishek said, outline the need for research in the field of food production.

“I am happy to be a small part of this gigantic research,” he told rediff.com.

Asked if he missed his high profile career at PwC, the young farming enthusiast said, “Not in the least. I am being true to my soul. I have transformed my passion into my profession.

“All that I ever wanted was to have a car of my own. I drive a Hyundai i10 now. What more can I ask for?” Abhishek said.

“For the entire six months of my stay at Jeddah, I stayed at Radisson. But here at Kharagpur IIT, I am staying in a small hostel room with a common washroom.

“The huge difference between my living arrangements here and there never bother me for a minute.

“We get only one life. Why waste it chasing frivolous things?”

Indrani Roy / Rediff.com in Kharagpur

Source………….www.rediff.com
Natarajan
>









 

Stunning Images of Planet Earth ….Captured From ISS…!!!

The Dutch physician and European Space Agency astronaut was selected to participate in International Space Station expeditions 30 and 31. Leaving the planet on December 21st 2011 and returning the following July, Andre Kuipers captured some absolutely incredible images of our planet.

Above Earth
400 kilometers above Earth
Astronauts
Australian Outback
The Australian Outback
Sunset From Space
A bizarre interaction between light and the sunset

Andre Kuipers Photo Of Canada
Canada
andre-kuipers-comet
A comet as seen from ISS
andre-kuipers-flattened-moonbeams
Flattened Moon beams
andre-kuipers-iss-moonlight
ISS at MOONLIGHT
andre-kuipers-sahara-atlantic
Sahara Desert and the Atlantic Ocean
andre-kuipers-moonrise
The Moonrise
andre-kuipers-observatorium
The ISS Observatories
Sahara Desert By Andre Kuipers
The Sahara Desert and Mauritania
andre-kuipers-somalian-desert
over the Somalian Desert
andre-kuipers-soyuz
The Soyuz – the apparatus Kuipers used to return to Earth

The Super Moon
The  Super  Moon
Natarajan

Image of the Day…Sky View of Earth…

composite image of southern Africa and the surrounding oceans from Suomi NPP

This composite image of southern Africa and the surrounding oceans was captured by six orbits of the NASA/NOAA Suomi National Polar-orbiting Partnership spacecraft on April 9, 2015, by the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument. Tropical Cyclone Joalane can be seen over the Indian Ocean.

Winds, tides and density differences constantly stir the oceans while phytoplankton continually grow and die. Orbiting radiometers such as VIIRS allows scientists to track this variability over time and contribute to better understanding of ocean processes that are beneficial to human survival on Earth. The image was created by the Ocean Biology Processing Group at NASA’s Goddard Space Flight Center in Greenbelt, Maryland.

For more information, please visit: http://oceancolor.gsfc.nasa.gov/ and http://www.nasa.gov/npp

Image Credit: Ocean Biology Processing Group at NASA’s Goddard Space Flight Center

Source…..www.nasa.gov

Natarajan

” To Bee or Not to Bee….”

Bees are an investment with high returns — the crop yield increases and products become healthier.

When bees are kept alongside farming activities, production increases between 20-200 per cent besides, of course, getting to sell honey on the market.

Shrikant Gajbhiye, founder of Bee The Change is helping spread awareness on bee keeping and its multiple merits. Read on to know more… 

Shrikant Gajbhiye

The new name for the butterfly effect is the ‘bee effect’, at least these days.

These buzzing clusters of little black and yellow insects pollinate almost 70 per cent of the crops that feed 90 per cent of humanity. But this  long and intricate natural chain, created by these busy bees, has been getting altered.

The sudden drop in bee populations worldwide is threatening the balance of the ecosystem with unpredictable consequences.

Shrikant Gajbhiye is the founder of Bee The Change, which offers free bee-keeping training to farmers and forest populations in Maharashtra.

He argues that when bees are kept alongside farming activities, production increases between 20 to 200 per cent besides, of course, getting to sell honey on the market.

A study in the UK has revealed that honeybees contribute £200 million a year with the services they indirectly enhance through their activities, and £1 billion with what they pollinate.

Similar studies are available in few other countries, but the function of bees in the food chain is the same everywhere.

In the US, some species of bees have virtually disappeared, the European Union has admitted their risk of extinction, and in India the number of the insects has drastically decreased — some point out RFR emitted by mobile phones and towers as one of the main causes. And this alarming fall in bee numbers is alarming everyone.

Given these assumptions, talking about ‘bee effect’ to indicate the massive consequences that can result from a relatively small cause, does not seem an exaggeration.

This is why Shrikant’s venture is not only about producing honey, but is directed towards broader outcomes.

Two years ago, after graduating from IIM Kozhikode, he took up a five-day hobby course on bee-keeping at a government institute in Pune, and fell in love with the striped honey-makers.

“I learnt some of the most amazing facts about bees and the role they play in the ecosystem by means of cross pollination.”

This opened my eyes not only on the key role bees play in nature, but also on the potential they have in changing the lives of people at the bottom of the pyramid,” Gajbhiye says.

Bee the Change trains the people in bee keeping

In the last few months, Bee The Change has trained more than 500 farmers and forest populations, and currently its network counts 50 trainees.

“As part of our operations, we meet farmers in rural areas and provide them with bee boxes and free training. Then, once they start bee-keeping, we buy back the honey at a pre-determined price. Ours is a not-for-profit outfit, and we generate income by selling this honey to retailers under our own brand.”

For farmers, the proceedings of honey and wax sales are only one of the numerous gains.

Bees are an investment with high returns — the crop yield increases and products become healthier.

“Bee-keeping and pesticides don’t really go hand in hand because chemicals cause the insects to die. So the farmers are asked to refrain from using pesticides while rearing the bees,” explains Shrikant.

This automatically reduces the use of pesticides.

Twenty-five Bee the Change trainees are working towards obtaining the certification for organic farming, which they usually apply for in groups generating cooperative work.

It is not easy to persuade farmers to take up the challenge because bee-keeping requires an investment.

“A bee box costs around Rs 5,000 and bees start producing honey only after a few months. Usually, in areas where we haven’t worked before, one out of ten farmers is willing to keep bees for a year. But once this farmer shows an exponential increase in crop production, others follow.”

Also, each bee colony can give as much as two more bee colonies through division each year providing additional income.

Shrikant Gajbiye explains the process of bee keeping

The organisation works with populations in the forests a little differently.

“We train them in techniques of natural honey hunting, which consists in extracting honey from existing combs without hurting the bees. This allows them to increase their income, and bees to be preserved in the wild.”

Be the Change also trains women in bee keeping

Gajbhiye says that there are very few organisations working on a similar models, but most of them working only with farmers, whereas Bee the Change includes populations living in the forests.

“Also, these organisations have priced their products in the premium range; whereas we have kept our product accessible,” he says.

Lack of training facilities for bee keeping in Maharashtra, unavailability of bee colonies, difficulties in maintaining a system of support for trainees, getting over negative preconceptions against bees, language barriers, and lack of funds are some of the challenges Bee The Change had to go through.

However, Gajbhiye says, “We dealt with these problems by getting ourselves trained first. We work with experts who help us with training and support, and importing colonies from elsewhere. We believe that exemplifying success stories is the best way of spreading awareness and gaining social interest.”

Currently, the number of colonies in nature is very low. This results in the costs of mobilising and installing these colonies is much higher than the price of the colonies itself.

“We are trying to rear the bee colonies in nature, breed them, and multiply them through our network to such levels that economies of scale can be exploited to increase our operational

efficiency,”says Srikanth.

Moreover, to further diversify the sources of income, Bee The Change is also planning to start training groups of women to produce organic honey and wax-based cosmetics.

The relevance of what Bee The Change is doing is undoubtedly huge and the team, which counts 20 volunteers, seems to have a great time in the process.

Shrikant Gajbhiye quotes Steve Jobs, “At least make a dent in the universe, else, why even be here.”

However, in a venture where resources are not abundant and ambition must scale up ten times faster that the venture itself, not a dent, but a revolution is the goal.

Source…..www.rediff.com

Natarajan

” Mystery of India’s Rapid Drift….”

The mystery of India’s rapid drift

India got a geologic boost that accelerated its drift toward Eurasia 80 million years ago, researchers suggest. The speed of the resulting impact created the Himalayas.

In this artist's rendering, the left image shows what Earth looked like more than 140 million years ago, when India was part of an immense supercontinent called Gondwana. The right image shows Earth today. Image credit: iStock (edited by MIT News)

A study in the journal Nature Geoscience on May 4, 2015 by team of MIT geologists offers an explanation for why the continent of India moved so rapidly toward Eurasia 80 million years ago.

More than 140 million years ago, India was part of an immense supercontinent called Gondwana, which covered much of the Southern Hemisphere. Around 120 million years ago, what is now India broke off and started slowly migrating north, at about five centimeters per year. Then, about 80 million years ago, the continent suddenly sped up, racing north at about 15 centimeters per year — about twice as fast as the fastest modern tectonic drift. The continent collided with Eurasia about 50 million years ago, giving rise to the Himalayas.

For years, scientists have struggled to explain how India could have drifted northward so quickly. Now geologists at MIT have offered up an answer: India was pulled northward by the combination of two subduction zones — regions in the Earth’s mantle where the edge of one tectonic plate sinks under another plate. As one plate sinks, it pulls along any connected landmasses. The geologists reasoned that two such sinking plates would provide twice the pulling power, doubling India’s drift velocity.

The team found relics of what may have been two subduction zones by sampling and dating rocks from the Himalayan region. They then developed a model for a double subduction system, and determined that India’s ancient drift velocity could have depended on two factors within the system: the width of the subducting plates, and the distance between them. If the plates are relatively narrow and far apart, they would likely cause India to drift at a faster rate.

The group incorporated the measurements they obtained from the Himalayas into their new model, and found that a double subduction system may indeed have driven India to drift at high speed toward Eurasia some 80 million years ago.

Based on the geologic record, India’s migration appears to have started about 120 million years ago, when Gondwana began to break apart. India was sent adrift across what was then the Tethys Ocean — an immense body of water that separated Gondwana from Eurasia. India drifted along at an unremarkable 40 millimeters per year until about 80 million years ago, when it suddenly sped up to 150 millimeters per year. India kept up this velocity for another 30 million years before hitting the brakes — just when the continent collided with Eurasia.

Leigh Royden is a professor of geology and geophysics in MIT’s Department of Earth, Atmospheric and Planetary Sciences. Royden said:

When you look at simulations of Gondwana breaking up, the plates kind of start to move, and then India comes slowly off of Antarctica, and suddenly it just zooms across — it’s very dramatic.

In 2011, scientists believed they had identified the driving force behind India’s fast drift: a plume of magma that welled up from the Earth’s mantle. According to their hypothesis, the plume created a volcanic jet of material underneath India, which the subcontinent could effectively “surf” at high speed.

However, when others modeled this scenario, they found that any volcanic activity would have lasted, at most, for five million years — not nearly enough time to account for India’s 30 million years of high-velocity drift.

Instead, the MIT researchers believe that India’s fast drift may be explained by the subduction of two plates: the tectonic plate carrying India and a second plate in the middle of the Tethys Ocean.

Celal Sengor is a professor of geological engineering at Istanbul Technical University who was not involved in this research. Sengor said:

India was going far too fast after it parted company with Africa-Madagascar and Australia. … Its speed northward, with respect to the rest of Eurasia, was faster than any plate motion we know today, or have inferred in the past across a single plate boundary. This paper not only has changed some of our ideas on the paleotectonics and paleogeography of the neo-Tethys, but has given us a new model about what double subductions can do.

Bottom line: According to a study published May 4, 2015 in the journal Nature Geoscience, India got a geologic boost that accelerated its drift toward Eurasia 80 million years ago.

Source…..www.earthsky.org

Natarajan