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1 month ago | 
britannica.com | John Rafferty
Hurricane Helene was a large, catastrophic tropical cyclone notable for its rapid intensification that ultimately produced a wide swath of damage and loss of life that extended from northwestern Florida to Tennessee, North Carolina, and South Carolina.
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Oct 31, 2024 | 
britannica.com | Nick Tabor |John Rafferty
decarbonization, type of climate-change mitigation designed to reduce the production of carbon dioxide (CO2) and other greenhouse gases that contribute to global warming by human activities and to remove excess amounts of greenhouse gases from Earth’s atmosphere.
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Oct 10, 2024 | 
britannica.com | John Rafferty |Erik Gregersen
Solving protein folding Proteins are large molecules that are directly involved in the chemical processes essential for life and are built up from 20 amino acids that can be combined in many different ways. The function of a protein is determined by its three-dimensional structure, which can be quite complex based on how the string of amino acids is folded. How a protein is folded is determined by its amino acid sequence.
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Sep 24, 2024 | 
britannica.com | John Rafferty |Melissa Petruzzello
Most birds are known for their colorful feathers, their unique vocalizations, and the roles they play in various ecosystems. Some bird species have been adopted by various states and territories within the United States to serve as symbols that represent a state’s unique heritage or as icons that help residents and visitors alike to appreciate the state’s distinctive wildlife. Kentucky was the first state to name its state bird, the northern cardinal (Cardinalis cardinalis), in 1926.
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Sep 4, 2024 | 
britannica.com | Sophie Eyre |John Rafferty
Environmental resource issues Megacities are attractive places to settle and live because they are often centers of economic opportunity. Rapid population growth and intensive urban development in such relatively small areas—which occur more frequently in the developing world—require an ever-increasing supply of resources, including food and water, energy, sewage and waste disposal, transportation, and housing.
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Sep 3, 2024 | 
britannica.com | Frannie Comstock |John Rafferty
Purpose and origins The flag was not flown constantly by pirate vessels. Before hoisting the Jolly Roger, pirates would raise the flag of one country or another to trick the crew of a ship into letting them draw near so they could plunder the ship. The flag’s use followed a previous tradition of raising a plain black flag to intimidate a targeted crew into surrendering.
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Jul 18, 2024 | 
britannica.com | John Rafferty
Saffir-Simpson hurricane scale, index of tropical cyclone intensity that classifies a storm’s wind speed into one of five divisions, or categories. The Saffir-Simpson hurricane scale was developed by American structural engineer Herbert Saffir and American meteorologist Robert H.
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Jun 21, 2024 | 
analyticalsciencejournals.onlinelibrary.wiley.com | Edward Curry |Svetlana E. Sedelnikova |John Rafferty |Martyn Hulley
CGE capillary gel electrophoresis CLuc Cypridina luciferase dsRNA double-stranded RNA IVT in vitro transcription RNAP RNA polymerase 1 INTRODUCTION The clinical success of SARS-Cov-2 vaccines established synthetic mRNA as an effective drug format, paving the way for hundreds of new mRNA-based vaccines and gene therapies to enter clinical trials.[1, 2] This has resulted in a sharp increase in global demand for mRNA production, and shifted mRNA manufacturing from a relatively niche process to...
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Jun 11, 2024 | 
thestreet.com | John Rafferty |Robert Powell
I was talking to a friend of mine in the financial services business recently, who shared a very astute observation. He told me to go Costco on weekends and take a look at the folks waiting in line for gas. Meaning…Costco has the cheapest gas around. Folks know that and are willing to wait 10-15 minutes in line to save a couple bucks on a fill up. Costco makes no money on this gas but they do know that gas is a gateway item to the profitable purchases in the stores.
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Mar 31, 2024 | 
britannica.com | John Rafferty
People and all other known forms of life inhabit one very old planet. In numerical terms, the best estimate of Earth’s age so far is that it is close to 4.6 billion years old. But what does that mean exactly? If one uses a human lifetime of 75 years as a measure, the time between Earth’s formation and today has taken more than 61 million human lifetimes! Examining the interactive below, one can see that a great deal has happened since 4.6 billion years ago.
