Marcelo Gleiser appears in the following:
Wednesday, December 02, 2015
Looking at how science has affected humanity, one of the strongest indicators is the dramatic increase in average life expectancy.
During the Late Middle Ages, the average life expectancy in Western Europe was 38 years; in Victorian England, 40. By the early 1900s, with improvements in sanitation, vaccines and treatment ...
Wednesday, November 25, 2015
On this very day 100 years ago, while Europe was buried deep in the darkness of the Great War, Albert Einstein wrote down the equation that changed forever the way we understand space, time and matter.
To a large extent, the equation also changed the way we understand ourselves, as ...
Wednesday, November 18, 2015
Wednesday, November 04, 2015
When discussing the relationship between science and religion, people often take a polarized position: It's either "I believe" or "I don't believe."
Much grief comes from the insistence from either side that the opposite is wrong or meaningless. (Here is an example, as secularist Sam Harris criticizes National Institutes ...
Wednesday, October 28, 2015
One of the indisputable advantages of the Internet is accessibility of information, in particular for educational purposes, inside and outside schools.
Vast collections of what we photograph, study and catalogue are available by typing a few words and clicking on a few tabs. For someone who grew up scavenging local ...
Wednesday, October 21, 2015
The notion that mechanization and technology will bring us free time, so we can "enjoy" life, is as old as technology itself.
The use of farming animals to cut through fields spared humans much hard work. Romans used watermills to grind grain and lift water for irrigation. As we advance ...
Saturday, October 17, 2015
On Sunday, a seven-part documentary series titled Belief begins airing on the Oprah Winfrey Network (OWN). For a week, viewers will travel around the world as the series explores the many facets of belief across cultures, from the orthodox to the secular, from the material to the spiritual.
Thursday, October 15, 2015
The origin of the universe is one of the most difficult realities we ponder.
It bends our logic, straining the words we have to describe it. If one is to say the universe started at the Big Bang some 13.8 billion years ago, the immediate reaction is: "But what came ...
Wednesday, October 07, 2015
We learned Tuesday that Takaaki Kajita, from the Super-Kamiokande Collaboration in Japan, and Arthur McDonald, from the Sudbury Neutrino Observatory Collaboration in Canada (SNO), won the 2015 Nobel Prize in physics for helping to solve a long-standing mystery in physics: the disappearing neutrinos.
Neutrinos are very weird particles. Proposed ...
Wednesday, September 30, 2015
Wednesday, September 23, 2015
On Thursday, the Boston Museum of Science will premiere The Hidden Code at the Charles Hayden Planetarium, a multimedia piece by Paul Miller (aka D J Spooky). The piece combines music, stunning visual effects and live readings to bring science to the general public in ways that only a ...
Wednesday, September 16, 2015
Wednesday, September 09, 2015
Few questions of our time are more perplexing than the transition from non-living to living matter.
How did a sample of inorganic chemicals self-organize to become a living creature, capable of absorbing energy from the environment and reproducing? Although the question remains open, there are a few things that we ...
Wednesday, September 02, 2015
Last week, New York Times science writer George Johnson wrote a very disturbing piece concerning the apparent loss of credibility science is now facing with the public at large.
Creationism, the anti-vaccine movement, resistance to genetically modified crops, cellphone radio waves, fluoridation, the ongoing global climate change debate, the ...
Wednesday, August 26, 2015
Scanning YouTube for popular science videos, I found a jewel — clocking over 10 million views — titled "Five Experiments That Could Have Destroyed The World."
The fact that we are here means these experiments did not succeed on this front. The message, however, is quite clear: We toy ...
Wednesday, August 19, 2015
Growing up in Brazil, I always looked up to America and Europe as standards for how to keep cities clean.
Walking along in New York or Paris, I was struck by how the streets and walkways were garbage-free — at least compared to the streets of Rio and São Paulo. ...
Wednesday, August 12, 2015
Wednesday, July 29, 2015
Wednesday, July 22, 2015
Nature is the ultimate puzzle player, as scientists at the European Center for Nuclear Research (CERN) found out last week.
In the late 1950s, particle physics was in crisis. Being the branch of physics that studies the structure of matter, particle physicists search for the smallest bits of stuff ...