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Astronomer Tom Gehrels, 1925-2011

By Guest PostJuly 14, 2011Scienceasteroids and comets, astronomer, astronomy, Britain, Chicago, dutch resistance, earth, England, gerard p kuiper, haarlemmermeer, harold masursky award, imaging photopolarimetry, jupiter, kitt peak, leiden university, nobel astrophysicist, saturn, saturn mysterious f ring, special operations executive, study of wavelength dependence of polarization of stars and planets, subrahmanyan chandrasekhar, the netherlands, tom gehrels, universal evolution, university of arizona, university of chicago

*In a career that spanned more than half a century, Gehrels fostered new research on asteroids and comets, including those that pose a threat to Earth.*

Tom Gehrels, an internationally noted planetary scientist and astronomer at the University of Arizona, as well as a hero of the Dutch Resistance during WWII, died Monday. He was 86.

Gehrels was among the first members of the fledgling Lunar and Planetary Laboratory when he joined the UA in 1961. During a long and distinguished career Gehrels pioneered new research on asteroids and comets, especially those that pose a collision threat to Earth. He also developed and taught introductory astronomy courses that were popular with non-science undergraduates. (more…)

Mars: Red Planet’s Rapid Formation Explains Its Small Size Relative to Earth

By Guest PostMay 27, 2011Scienceali pourmand, atmosphere, chemical behavior, chondrites, composition of chondrites, computer simulation, dauphas and pourmand, earth, embryos, enriqueta barrera, fine scale chronology, geophysicist, hafnium, lithophile elements, mantle of mars, mars, martian meteorites, national science foundation, nicolas dauphas, non volatile elements, nsf, radioactive decay, red planet, refractory, solar system, tungsten in meteorites, tungsten isotopic composition, university of chicago, xenon content

*Mars developed far more quickly than our blue planet*

Mars developed in as little as two to four million years after the birth of the solar system, far more quickly than Earth, according to results of a new study published in this week’s issue of the journal Nature.

The red planet’s rapid formation helps explain why it is so small, say the study’s co-authors, Nicolas Dauphas at the University of Chicago and Ali Pourmand at the University of Miami. (more…)

From the Beginning, the Mind Knows the Difference Between Night and Day

By Guest PostApril 28, 2011Scienceaugust kampf-lassin, basic human behaviors, biological rhythms, brain, brian prendergast, circadian rhythms, circadian system, hamster circadian visual system, primates, sunrise, sunset, university of chicago, visual stimuli

The brain is apparently programmed from birth to develop the ability to determine sunrise and sunset, new research on circadian rhythms at the University of Chicago shows.

The research sheds new light on brain plasticity and may explain some basic human behaviors, according to Brian Prendergast, associate professor in psychology, and co-author of a paper published April 27 in the journal PLoS One. The lead author is August Kampf-Lassin, an advanced graduate student at the University. (more…)

Highest Percentage of Americans in Four Decades Say Financial Situation Has Gotten Worse

By Guest PostApril 17, 2011Economyamericans, biennial survey, economic assessments, financial situation, general social survey, happiness, norc, policy makers, tom smith, university of chicago, well being of americans

*General Social Survey Also Shows That Happiness Takes A Hit Because of Personal Finances*

Chicago — A recently released report of the General Social Survey, conducted by NORC at the University of Chicago, shows that for the first time since 1972, more Americans say that their financial situation has gotten worse in recent years rather than better. Understandably, also for the first time since 1972, the percentage of Americans saying that they are “not at all” satisfied with their financial situation (31.5%) notably exceeds those saying they are “pretty well” satisfied (23.4%). (more…)

Writing About Anxiety Helps Students Ace Exams

By Guest PostJanuary 20, 2011Culture, Educationanxiety, average grade, choke, classroom, counterintuitive, effective way, exam, exam performance, gerardo ramirez, gregg solomon, high pressure situations, improve, mental logjams, negative thoughts, performance, research, secrets of the brain, sian beilock, test scores, university of chicago, writing about test related worries

*Research says test performance improves when students write about their worries*

Sian Beilock, lead author of a new study that appears on January 13 in the journal Science, says writing about test-related worries for ten minutes immediately before taking an exam is an effective way to improve test scores in classroom settings.

“By writing down one’s negative thoughts, students may come to realize that the situation is not as bad as they thought or that they are prepared to take it on,” said Beilock, an associate professor of Psychology at the University of Chicago. “As a result, they worry less during the test.” (more…)

Tag Archives: university of chicago

Astronomer Tom Gehrels, 1925-2011

Mars: Red Planet’s Rapid Formation Explains Its Small Size Relative to Earth

From the Beginning, the Mind Knows the Difference Between Night and Day

Highest Percentage of Americans in Four Decades Say Financial Situation Has Gotten Worse

Writing About Anxiety Helps Students Ace Exams