Diets, Crowd Physics, Snowflake Citizen Science. January 4, 2019, Part 1 from Science Friday

From Science Friday - Earlier this week, hundreds of thousands of revelers huddled together under the pouring rain in Times Square for an annual tradition: to watch the New Year's ball drop. But once the clock struck midnight, the song was sung, and the loved ones were kissed, all anyone wanted to do was get out of there. The problem? How does a mass of 100,000 people move out of a few square blocks in midtown Manhattan? Luckily, scientists are studying this type of problem. Stanford University professor Nicholas Ouellette joins Ira to discuss the weird world of crowd movement. From low-carb, high protein, calorie counting, there are all sorts of diets that claim to help you lose weight. But how do all of these guidelines affect our metabolism and bodies? A study out in the British Medical Journal found that a reduction in carbohydrates increased energy expenditures. Endocrinologist David Ludwig, an author on that study, talks about the role carbohydrates, fats, and proteins play in regulating our metabolism and how we might rethink our calorie counting. Plus: Lake Tahoe scientists are enlisting local citizens to better understand winter storms. Capital Public Radio's Ezra David Romero joins Ira in the latest edition of The State Of Science. And FiveThirtyEight's Maggie Koerth-Baker tells Ira about China's Chang'e-4 mission and other top science stories in this week's News Round-up.  
Diets, Crowd Physics, Snowflake Citizen Science. January 4, 2019, Part 1
2019-01-04 13:51:11
Earlier this week, hundreds of thousands of revelers huddled together under the pouring rain in Times Square for an annual tradition: to watch the New Year's ball drop. But once the clock struck midnight, the song was sung, and the loved ones were kissed, all anyone wanted to do was get out of there. The problem? How does a mass of 100,000 people move out of a few square blocks in midtown Manhattan? Luckily, scientists are studying this type of problem. Stanford University professor Nicholas Ouellette joins Ira to discuss the weird world of crowd movement. From low-carb, high protein, calorie counting, there are all sorts of diets that claim to help you lose weight. But how do all of these guidelines affect our metabolism and bodies? A study out in the British Medical Journal found that a reduction in carbohydrates increased energy expenditures. Endocrinologist David Ludwig, an author on that study, talks about the role carbohydrates, fats, and proteins play in regulating our metabolism and how we might rethink our calorie counting. Plus: Lake Tahoe scientists are enlisting local citizens to better understand winter storms. Capital Public Radio's Ezra David Romero joins Ira in the latest edition of The State Of Science. And FiveThirtyEight's Maggie Koerth-Baker tells Ira about China's Chang'e-4 mission and other top science stories in this week's News Round-up.  

46 minutes, 52 seconds

More Episodes from Science Friday

Covering everything about science and technology -- from the outer reaches of space to the tiniest microbes in our bodies -- Science Friday is your source for entertaining and educational stories and activities. Each week, host Ira Flatow interviews scientists and inventors like Sylvia Earle, Elon Musk, Neil deGrasse Tyson, and more.

Tech Unions, Color Perception, Fish Vs Birds. Feb 19, 2021, Part 2
Reprogramming Labor In Tech More than 6,000 warehouse workers in Bessemer, Alabama are midway through voting on whether they should unionize. If the 'yes' votes win, it would be unprecedented for the company: The last time a unionization vote was held by Amazon's United States employees, back in...

Fauci On Vaccines and Variants, Mummy Mystery, Texas Power Grid Failure. Feb 19, 2021, Part 1
Fauci Says Majority Of U.S. Adults Likely To Be Vaccinated By Late Summer We're about a month shy of a big anniversary: one year since the World Health Organization officially labeled COVID-19 a pandemic. Since then, a lot has changed–and a lot has not. We have more information than ever about...

Fish Eye Secrets, Human Genome Project, Science Diction 'Mesmerize.' Feb 12, 2021, Part 2
Seeing The World Through Salmon Eyes The saying goes, "The eyes are the window to the soul." But for fish, the eyes are the window to the stomach.  As one California biologist recently learned, the eyes of Chinook salmon are like a tiny diet journal of everything it ate. But to read that journal,...

The Effectiveness Of Double-Masking, Mars Landing Preview. Feb 12, 2021, Part 1
Two Masks Are Better Than One Masks have been a big issue throughout the pandemic, from supply shortages to debates about when they should be required to be used. This week, the Centers for Disease Control and Prevention put out research and guidance on the effectiveness of double masking–wearing...

Four Lost Cities, Sourdough Microbiome, Queen Bees, Bison. Feb 5, 2021, Part 2
National Bison Range Returns To Indigenous Management Hundreds of years ago, tens of millions of bison roamed North America. They were an essential resource and cultural foundation for many Native American tribes. And by 1890, European colonists had hunted them nearly to extinction.  When President...

COVID Variants And Vaccines, U.S. Energy Justice. Feb 5, 2021, Part 1
Will Vaccines Work Against New Variants Of The Coronavirus? The rollout of COVID-19 vaccination programs around the world has been anything but smooth. Complicating the effort is the virus itself. The original coronavirus genome that the current vaccines were based on has mutated. Now, there are...

Medieval Bones, Vaccine Rollout, Florida Panthers. Jan 29, 2021, Part 2
A Skeletal Record Of Medieval England Society If you've ever fractured a bone, that skeletal trauma stays with you forever, even after it heals. So researchers across the pond are using bones from medieval times to put together a picture of what life was like. The bones in the study came from...

Your Questions About COVID-19 Vaccines Answered, Placenta Science. Jan 29, 2021, Part 1
Everything You Want To Know About COVID-19 Vaccines The U.S. has been vaccinating people against COVID-19 for a little over a month. While there have been plenty of hiccups, over 20 million people in the country have received at least one dose of either the Pfizer-BioNTech or the Moderna shots. For...

Orange Bat, Greenland Bacteria, COVID Anniversary, Alien Argument. Jan 22, 2021, Part 2
Orange Is The New Black–For Bats For a newly-described bat from West Africa, dubbed Myotis nimbaensis (mouse-eared bat from the Nimba Mountains), scientists are reaching for a different part of the color wheel. While Myotis does have some black on its body, the overwhelming majority of the...

Finding Lead Pipes Through Algorithm, How Soil Could Save The Planet. Jan 22, 2021, Part 1
After Flint's Crisis, An Algorithm Helps Citizens Find Lead Pipes It's been nearly seven years since the beginning of Flint, Michigan's water crisis, when high levels of lead from corroded lead pipes led to water shortages and health issues for city residents. Since then, many other cities around...

Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.