Streams

Marcelo Gleiser

Marcelo Gleiser appears in the following:

The World's Oldest Known Calendar Discovered In Scotland

Wednesday, July 24, 2013

Found in Scotland and dating from 10,000 years, the oldest calendar shows that hunter-gatherers already knew how to mark time by looking a the skies. The discovery forces us to rethink what we know of ancient cultures and time-keeping.

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More Is Different: Nature's Unruly Complexity

Wednesday, July 03, 2013

Reductionism, science's "divide and conquer" approach, has done a lot; but Nature's complexity calls for a complementary approach based on a variety of new laws. Else, says Marcelo Gleiser, we have a slim hope of describing how life or the brain work.

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Laws Of Man And Laws Of Nature

Wednesday, June 26, 2013

The laws of man order society, making sure we don't descend into chaos; the laws of nature reveal ordered patterns. Commentator Marcelo Gleiser considers the similarities and differences between the two, and whether the laws of Nature could change, as the laws of man do.

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Does Life Have A Purpose?

Wednesday, June 19, 2013

The diversity of life on Earth, and its ever-growing complexity, leads many people to think that there must be a purpose to its existence. Commentator Marcelo Gleiser argues that, quite the contrary, the only purpose of life is to preserve itself. There is no hidden hand behind it all.

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Modern Science And Our Sense Of Wonder

Wednesday, June 12, 2013

Science is often accused of extinguishing our enchantment with the world, of being too cold and rational. Quite the opposite is true, says Marcelo Gleiser. Modern science has restored a sense of wonder to the world with its revelations of objects unseen and realities unknown.

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Other Planets: From Speculation To Confirmation

Wednesday, June 05, 2013

Last week NASA scientists put the space telescope Kepler in a kind of technological coma. The craft, designed to search for Earth-like planets orbiting stars in our cosmic neighborhood (within a few thousand light-years, that is), failed and seems to be unfixable. But it has left us with an undeniable legacy.

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Funny Things Happen When Space And Time Vanish

Wednesday, May 29, 2013

Can we act backwards in time? We can if we're talking about the world of quantum particles! It seems that the human mind plays a role in this time puzzle, too. Our role may even have something to do with why the universe exists.

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The Inevitable Question?

Wednesday, May 22, 2013

Confronted with the amazing advances made by science, why do so many still cling to God as a creator? Could the answer be that we need to be created in order to be special? Or are we afraid of our own unique place in the Universe? Marcelo Gleiser knows what he thinks.

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For The Love Of Science: A Call To Action

Wednesday, May 15, 2013

Improvements in science education can take many forms. Commentator Marcelo Gleiser says that one of the easiest and most rewarding is to simply put real research scientists in front of students. A few volunteer hours from a scientist can change how a student sees the world forever.

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Portrait Of A Physicist As A Young Man

Wednesday, May 08, 2013

Physicist Marcelo Gleiser recalls his early interest in competing interpretations of the quantum world. Now a successful researcher in his own right, he wonders if its time to switch gears and turn his casual interest into a professional pursuit.

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Who's Afraid Of The Quantum Ghost?

Wednesday, May 01, 2013

How do you explain it when unseen forces act across time and space? The fact is that reality is far stranger than we can suppose when we step into the quantum world. Physicist Marcelo Gleiser lays out the bones of this modern ghost story.

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Defining Our Place In The Universe

Wednesday, April 17, 2013

Is the importance of life on Earth shrinking as science continually re-defines our world as a meaningless speck in an endless and uncaring Universe? Or is life here a precious thing that grows in importance with our ever-deepening knowledge of the Universe? Commentator Marcelo says it's the latter.

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Our Dark Materials

Wednesday, April 10, 2013

Science discovers one dark material after another, making reality stranger than fiction. Commentator Marcelo Gleiser says the recent observation of the Higgs field and last week's announcement of the possible detection of dark matter are just the latest data points in our long quest to know what the Universe is made of.

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Mind And Matter: Confessions Of A Perplexed Soul

Wednesday, April 03, 2013

What can we say about how the brain creates our sense of self? A lot and yet surprisingly little, as it turns out. Commentator Marcelo Gleiser ponders the many challenges scientists face to make sense of our mind.

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The Origin Of The Universe: From Nothing Everything?

Wednesday, March 27, 2013

Can science ever explain the origin of the Universe? Commentator Marcelo Gleiser suggests caution and humility as scientists face this very difficult question.

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Planck Data: Universe Older And Slower

Thursday, March 21, 2013

Results from the European Planck satellite point to an older and slower universe. Commentator Marcelo Gleiser says the data gives us confidence that cosmology is on the right track to explain the Universe in which we live.

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Where Did Life Come From? The Mind? The Universe? Can We Even Know?

Wednesday, March 20, 2013

Can science explain the origins of the universe, of life and of the mind? Not completely, it turns out. But how far can it go in answering them? Commentator Marcelo Gleiser starts digging into these questions.

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Is Mathematics A Criterion For Truth In The Natural World?

Wednesday, March 13, 2013

Is math a truth or a human invention? In this age-old question lies an interesting analogy with sports, and perhaps a resolution to the conundrum. Updated with sources for further reading on the math as invention vs. discovery controversy.

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Is The Earth Alive? That Depends On Your Definition Of Life

Wednesday, March 06, 2013

As scientists advance their understanding of how the Earth has changed through billions of years, it becomes increasingly clear that the Earth and the life on it are entwined in unique ways. Commentator Marcelo Gleiser goes in search of the origins of life in a meeting of the minds at CERN.

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Dispatch From CERN: Which Higgs?

Wednesday, February 27, 2013

Scientists have found a Higgs-like particle, a key component in modern physics theory. But is it the Higgs particle, or a new one, part of a more complex model?

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