April 2, 2021
The pandemic has slowed many projects around the world, but scientists and engineers are nearing completion of a long-planned upgrade and maintenance period at CERN’s massive Large Hadron Collider project in Switzerland. The collider is currently cooling down and testing components, and aiming to start up for its third major run late this year. In the meantime, researchers have had time to sift through the data from previous experiments—and last week, they announced a finding that might indicate new physics at work.
The Standard Model of physics describes three of the universe’s fundamental forces, and how subatomic particles interact. One of the things it predicts is how particles decay into other components. Researchers at CERN analyzing particles called b-mesons found signs that their decay may not produce equal quantities of electrons and muons—as would be predicted by the Standard Model. While that discrepancy might not seem like a big deal, it could mean that there’s a previously undetected particle or force at play. However, the researchers don’t yet have enough data to say with confidence that their finding is real. They’ll need to collect several more years of data once the LHC restarts, as well as hope for confirmation from another major experiment in Japan.
Sheldon Stone, a distinguished professor of physics at Syracuse University and a member of the management committee of the LHCb Collaboration at CERN, joins Ira to talk about the anomaly in the data—and what it might mean if it’s proven to be real.
When it comes to the bodies of humans and animals, there are a few functions that we’re usually discouraged from talking about. Specifically, the ones that involve releasing gas. (Yep, burps and farts.) But if you’re a cow, there’s a lot of scientific work that goes into analyzing what’s coming out in the gas you release. That’s because the cattle industry is one of the largest producers of methane gas, a huge contributor to global warming.
Some scientists are experimenting with feeding cows new things, to try to limit their methane output from the inside. New research shows a very promising result: By feeding beef cattle just a few ounces of dried seaweed per day, methane emissions from the cows went down as much as 82%.
Ira talks to the lead author of that paper, Ermias Kebreab, associate dean and professor of animal science at the University of California, Davis about how seaweed inhibits methane production in cows. They’re also joined by Albert Straus, founder and CEO of Straus Family Creamery in Marshall, California, who will be testing the seaweed diet on his cows this summer.
The COVID-19 pandemic is not over, even after a long and painful year. Spring break always attracts attention but this year, there’s another reason spring breakers are coming to Florida. Gov. Ron DeSantis basically invited them: “Let me just tell ya’. There’s no lockdowns in Florida, OK? It’s not gonna happen,” he told a cheering crowd earlier this month. One South Beach visitor, Christina Thomas, summed up spring breakers’ options this way: “California is closed.”
Even with that open-door policy, Miami Beach is more closed than it used to be, too. There’s an 8 p.m. curfew from Thursdays through the weekend in a particular stretch of Miami Beach and also a limit on eastbound traffic on the Julia Tuttle, Venetian and MacArthur Causeways starting at 10 p.m. City officials made that decision after days of people gathering along Ocean Drive, listening to music and dancing harmlessly ended, and tragic incidents began: A 27-year-old was shot and killed in South Beach. A woman was found dead in a hotel room, after she was allegedly drugged and raped. Last Friday night, the Miami Beach police chief said gunshots were fired and crowds ran through the streets.
Over this past weekend, the city declared a state of emergency. By then, the bar at the Clevelander on Ocean Drive had already closed, a notable decision, because the iconic establishment is built on the party scene. Management said things just got too hectic and they were worried about their staff. “We really should stop calling it spring break as this is not about college kids on their vacation,” Miami Beach Mayor Dan Gelber said on Monday. He partially blames that “open for business” message from the governor. “Over the last weeks and longer, our city has been one of the only true destination cities open for business anywhere,” Gelber said. Read more at sciencefriday.com.
The Biden administration announced a wind power plan that aims to support more offshore deployment—expanding jobs and infrastructure investment. The plan includes development of a new Wind Energy Area in shallow waters between Long Island and the New Jersey coast. The goal: deploy 30 gigawatts of offshore wind energy by 2033. Amy Nordrum from MIT Technology, joins Science Friday to discuss that story along with Biden’s proposed $250 billion budget for scientific research and a mysterious interstellar visitor.