A Team Of Scientists Has Developed “robot Flies” About The Size Of A Quarter That Can Perch On Almost

A Team Of Scientists Has Developed “robot Flies” About The Size Of A Quarter That Can Perch On Almost
A Team Of Scientists Has Developed “robot Flies” About The Size Of A Quarter That Can Perch On Almost
A Team Of Scientists Has Developed “robot Flies” About The Size Of A Quarter That Can Perch On Almost

A team of scientists has developed “robot flies” about the size of a quarter that can perch on almost any surface.

The perching works using static electricity. Each drone carries a tiny copper electrode on its head. When the electrode is energized, it creates a static charge that sticks the robot to a surface. Turning off the electrode sends the little drone back into the air.

Perching is important because it makes the robots more energy efficient. Perching is up to a thousand times more energy-efficient than hovering in place, the researchers say.

Read more about roboflies here.

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Source: The National Network To End Domestic Violence  

Source: The National Network to End Domestic Violence  

8 years ago

How Churchill engineered the holocaust of 3 million Indians

How Churchill Engineered The Holocaust Of 3 Million Indians
How Churchill Engineered The Holocaust Of 3 Million Indians
How Churchill Engineered The Holocaust Of 3 Million Indians

As the resistance swelled, Churchill announced: “I hate Indians. They are a beastly people with a beastly religion.” This hatred killed. To give just one, major, example, in 1943 a famine broke out in Bengal, caused – as the Nobel Prize-winning economist Amartya Sen has proved – by the imperial policies of the British. Up to 3 million people starved to death while British officials begged Churchill to direct food supplies to the region. He bluntly refused. He raged that it was their own fault for “breeding like rabbits”. At other times, he said the plague was “merrily” culling the population.  Skeletal, half-dead people were streaming into the cities and dying on the streets, but Churchill – to the astonishment of his staff – had only jeers for them. “If food is so scarce, why hasn’t Gandhi died yet?”

Source: The Independent, Time, IBT

8 years ago
21 Queer Indians Recall The Exact Moment They Came Out To Their Parents
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21 Queer Indians Recall The Exact Moment They Came Out To Their Parents
21 Queer Indians Recall The Exact Moment They Came Out To Their Parents

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8 years ago
A Friendly Reminder From The Campaign For Southern Equality.

A friendly reminder from the Campaign for Southern Equality.

9 years ago
er-zico - Leisure
8 years ago
#UnfairAndLovely: South Asians Fight Back Against The Stigma Surrounding Dark Skin 
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#UnfairAndLovely: South Asians Fight Back Against The Stigma Surrounding Dark Skin 
#UnfairAndLovely: South Asians Fight Back Against The Stigma Surrounding Dark Skin 

#UnfairAndLovely: South Asians Fight Back Against The Stigma Surrounding Dark Skin 

One of the campaign starters had the best thing to say about it, too.

8 years ago

The so-called paradox of freedom is the argument that freedom in the sense of absence of any constraining control must lead to very great restraint, since it makes the bully free to enslave the meek. The idea is, in a slightly different form, and with very different tendency, clearly expressed in Plato. Less well known is the paradox of tolerance: Unlimited tolerance must lead to the disappearance of tolerance. If we extend unlimited tolerance even to those who are intolerant, if we are not prepared to defend a tolerant society against the onslaught of the intolerant, then the tolerant will be destroyed, and tolerance with them. — In this formulation, I do not imply, for instance, that we should always suppress the utterance of intolerant philosophies; as long as we can counter them by rational argument and keep them in check by public opinion, suppression would certainly be unwise. But we should claim the right to suppress them if necessary even by force; for it may easily turn out that they are not prepared to meet us on the level of rational argument, but begin by denouncing all argument; they may forbid their followers to listen to rational argument, because it is deceptive, and teach them to answer arguments by the use of their fists or pistols. We should therefore claim, in the name of tolerance, the right not to tolerate the intolerant. We should claim that any movement preaching intolerance places itself outside the law, and we should consider incitement to intolerance and persecution as criminal, in the same way as we should consider incitement to murder, or to kidnapping, or to the revival of the slave trade, as criminal.

Karl Popper, The Open Society and Its Enemies

8 years ago

Constellations and the Calendar

Did you recently hear that NASA changed the zodiac signs? Nope, we definitely didn’t…

…Here at NASA, we study astronomy, not astrology. We didn’t change any zodiac signs, we just did the math. Here are the details:

First Things First: Astrology is NOT Astronomy…

Astronomy is the scientific study of everything in outer space. Astronomers and other scientists know that stars many light years away have no effect on the ordinary activities of humans on Earth.

Astrology is something else. It’s not science. No one has shown that astrology can be used to predict the future or describe what people are like based on their birth dates.

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Some curious symbols ring the outside of the Star Finder. These symbols stand for some of the constellations in the zodiac. What is the zodiac and what is special about these constellations?

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Imagine a straight line drawn from Earth though the sun and out into space way beyond our solar system where the stars are. Then, picture Earth following its orbit around the sun. This imaginary line would rotate, pointing to different stars throughout one complete trip around the sun – or, one year. All the stars that lie close to the imaginary flat disk swept out by this imaginary line are said to be in the zodiac.

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The constellations in the zodiac are simply the constellations that this imaginary straight line points to in its year-long journey.

What are Constellations?

A constellation is group of stars like a dot-to-dot puzzle. If you join the dots—stars, that is—and use lots of imagination, the picture would look like an object, animal, or person. For example, Orion is a group of stars that the Greeks thought looked like a giant hunter with a sword attached to his belt. Other than making a pattern in Earth’s sky, these stars may not be related at all.

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Even the closest star is almost unimaginably far away. Because they are so far away, the shapes and positions of the constellations in Earth’s sky change very, very slowly. During one human lifetime, they change hardly at all.

A Long History of Looking to the Stars

The Babylonians lived over 3,000 years ago. They divided the zodiac into 12 equal parts – like cutting a pizza into 12 equal slices. They picked 12 constellations in the zodiac, one for each of the 12 “slices.” So, as Earth orbits the sun, the sun would appear to pass through each of the 12 parts of the zodiac. Since the Babylonians already had a 12-month calendar (based on the phases of the moon), each month got a slice of the zodiac all to itself.

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But even according to the Babylonians’ own ancient stories, there were 13 constellations in the zodiac. So they picked one, Ophiuchus, to leave out. Even then, some of the chosen 12 didn’t fit neatly into their assigned slice of the pie and crossed over into the next one.

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When the Babylonians first invented the 12 signs of zodiac, a birthday between about July 23 and August 22 meant being born under the constellation Leo. Now, 3,000 years later, the sky has shifted because Earth’s axis (North Pole) doesn’t point in quite the same direction.

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The constellations are different sizes and shapes, so the sun spends different lengths of time lined up with each one. The line from Earth through the sun points to Virgo for 45 days, but it points to Scorpius for only 7 days.  To make a tidy match with their 12-month calendar, the Babylonians ignored the fact that the sun actually moves through 13 constellations, not 12. Then they assigned each of those 12 constellations equal amounts of time.

So, we didn’t change any zodiac signs…we just did the math.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

8 years ago

The Surprising And Varying Kinds Of Intelligence- Which One Is Yours?

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In our modern day society we find that the educational system has a very narrow perspective of intelligence, mostly linguistics and logical knowledge. The groups who fall within the parameter of these intelligence sectors, can prize themselves  as lucky.

What happens when our schooling system mostly focuses on these sectors? Well,  a very big percentage of the people gets left out. By doing so, there is a big possibility that this group gets labeled as less intelligent, while the truth can be very much the opposite. Their intelligence may just lie in a different category.

The theory of multiple intelligence was first published by Howard Gardner in 1983. In his book called Frames of mind, he describes seven different intelligence categories. Over the years a couple additional categories has been added, with the latest suggestion for an addition in the beginning of this year.

With this theory Gardner wants to show that the norm of what is called ‘intelligence’ in our society is too narrow. People can be highly intelligent in other areas.  Which one of the next categories applies to you?

Keep reading

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er-zico - Leisure
Leisure

Dear Readers,Welcome to my personal blog. I'm Sabyasachi Naik (Zico,24).An Agnostic,deeply NON religious(atheist), and Secular Progressive Civil Engineer . I'm brown and proud to be an Indian tribe. “I want to say a word to the Brahmins: In the name of God, religion, sastras you have duped us. We were the ruling people. Stop this life of cheating us from this year. Give room for rationalism and humanism.” ― Periyar E.V. Ramasamy

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