Science & Tech

All Science & Tech

  • Toxic mercury springs from a hidden source

    Environmental scientists at Harvard have discovered that the Arctic accumulation of mercury, a toxic element, is caused by both atmospheric forces and the flow of circumpolar rivers that carry the element north into the Arctic Ocean.

  • A forest washing into the sea

    Harvard researchers probe environmental shifts on Martha’s Vineyard, where they document one wooded area’s recovery from a massive die-off and another’s passage into the ocean.

  • Taking the long view on infrastructure

    “Envision,” a tool developed with backing from the Zofnass Program for Sustainable Infrastructure at GSD, provides a comprehensive framework for governments and industry to evaluate infrastructure projects of all types and sizes based on environmental, economic, and community benefits.

  • Sharing design, in all its forms

    The first Design Fair at the Harvard School of Engineering and Applied Sciences (SEAS) displayed the wealth of ideas that have emerged at SEAS throughout this past academic year.

  • New tool to battle illegal trade in animals

    Harvard’s Center for Geographic Analysis will work with United Nations University on a system that will allow users to track and map wildlife crime, and how it is related to a host of socioeconomic factors.

  • The whys of religion vs. evolution

    University of Chicago evolutionary biologist Jerry Coyne says that dysfunction within American society promotes high levels of religious belief that in turn blocks general acceptance of evolutionary theories.

  • Rules of attraction

    Nicholas Christakis, whose research explores how everything from obesity to smoking to happiness spreads among our social networks, is turning his attention to the past, exploring why and how we became the social animals we are.

  • From Iraq and back, via 9/11 and Harvard

    A Harvard authority on ancient Iraq spent several years studying clay tablets looted from that nation, which had been stored in a World Trade Center building that was destroyed on 9/11. The tablets eventually were retrieved, restored, translated, and returned.

  • Crime probe

    A Harvard engineering class helps find a metric for a computer scheme that tracks gang violence.

  • Rethinking mitosis

    The mitotic spindle, an apparatus that segregates chromosomes during cell division, may be more complex than the standard textbook picture suggests, according to researchers at the Harvard School of Engineering and Applied Sciences.

  • ‘Warming hole’ delayed climate change

    Climate scientists at the Harvard School of Engineering and Applied Sciences (SEAS) have discovered that particulate pollution in the late 20th century created a “warming hole” over the eastern United States — that is, a cold patch where the effects of global warming were temporarily obscured.

  • Barbecue’s beginnings

    Steven Raichlen, author of “The Barbecue Bible” and “Planet Barbecue,” discussed on barbecue’s origins among early humans and barbecue customs around the world in a recent Harvard talk.

  • Decision, decisions

    Two of Harvard’s leading social scientists discussed the way that humans make decisions, and whether having more choices really makes us happier.

  • How to organize chaos

    Executives from a leading debris-recovery firm, Phillips & Jordan Inc., were at Harvard on April 19 to discuss challenges and lessons learned in two decades of aiding the biggest cleanup efforts in the United States.

  • Illuminating carbon’s climate effects

    Harvard researchers compiled ice and sedimentary core samples collected from dozens of locations around the world, and found evidence that while changes in Earth’s orbit may have touched off a warming trend, increases in CO2 played a far more important role in pushing the planet out of the ice age.

  • Earth’s sister in the crosshairs

    A new book by Harvard astronomer Dimitar Sasselov explains the revolution in understanding the universe that views life as a natural part of planetary evolution and that has researchers on the brink of finding worlds that echo this one.

  • Elegant entanglement

    Harvard scientists have taken a critical step toward building a quantum computer — a device that could someday harness subatomic particles such as electrons to perform calculations far faster than the most powerful supercomputers.

  • Self-assembly as a guide

    Vinothan Manoharan, an assistant professor of chemical engineering and physics at the School of Engineering and Applied Sciences, wants to make self-assembly — when particles interact with one another and spontaneously arrange themselves into organized structures — happen in the laboratory to treat life-threatening diseases or manufacture useful objects.

  • Making drinking water clean

    Free water purification is needed to head off more than a million childhood deaths from diarrhea each year, says Gates Professor of Developing Societies Michael Kremer.

  • Dangerous heat

    New research from the Harvard School of Public Health suggests that seemingly small changes in summer temperature swings may shorten life expectancy for elderly people with chronic medical conditions, and could result in thousands of additional deaths each year.

  • Technology transforms energy outlook

    The U.S. energy picture has changed dramatically in recent years, with a flood of shale gas making natural gas a more attractive fuel option and the opening of new supplies cutting U.S. dependence on Middle Eastern oil, an energy expert says.

  • Black holes feed on stars

    New research by astronomers at the University of Utah and the Harvard-Smithsonian Center for Astrophysics shows that supermassive black holes can grow big by ripping apart double-star systems and swallowing one of the stars.

  • Bubble, bubble — without toil or trouble

    Among the advances linked to Harvard is one that came in a field not normally associated with the University: the culinary arts. Cooks use a professor’s 1850s invention, baking powder, as a time-saving replacement for yeast.

  • The greenest lab, up and running

    The renovation of Harvard’s Sherman Fairchild Building may have seemed inconsequential to the casual observer because the exterior barely changed. However, as a result of a two-year project to accommodate the Stem Cell and Regenerative Biology Department (SCRB), the interior has been transformed into one of the University’s greenest and most efficient laboratory spaces.

  • Ideas galore

    Students participating in the Harvard College Innovation (I3) Challenge this year generated dozens of promising ideas to improve the quality of daily life.

  • You, revealed

    “X-Rays of the Soul: Rorschach and the Projective Test,” at Harvard’s Collection of Historical Scientific Instruments, tells the story of the projective test movement and portrays the heady confidence that science could be used to extract and access the most human parts of human beings.

  • Nurturing the seeds of innovation

    The bond between Harvard and Silicon Valley is a close one. The region is home to a powerful network of alumni willing to offer mentorship to students and recent graduates who are dreaming big. Taking advantage of that network, SEAS and HBS recently came together to organize the trip to Palo Alto.

  • Buckling under pressure

    Inspired by a spherical toy that expands and collapses, researchers at Harvard and MIT have created a new type of engineered capsule, called a “buckliball,” that exploits the phenomenon of buckling. The buckliball is the first morphable structure to incorporate buckling as a desirable engineering design element.

  • Planet starship

    Seven years ago, astronomers boggled when they found the first runaway star flying out of our galaxy at a speed of 1.5 million miles per hour. The discovery intrigued theorists, who wondered: If a star can get tossed outward at such an extreme velocity, could the same thing happen to planets? New research shows that the answer is yes.

  • In a drying Amazon, change looms

    If the Amazon becomes drier, as predicted by climate models, the forest will see a shift toward tree species that are drought tolerant and, in some cases, will lead to a savannah’s mix of trees and grasses, Robert F. Kennedy Visiting Professor Guillermo Goldstein says.