Timothy Jorgensen
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Articles by Timothy Jorgensen
Lise Meitner - the forgotten woman of nuclear physics who deserved a Nobel Prize Original
Nuclear fission – the physical process by which very large atoms like uranium split into pairs of smaller atoms – is what makes nuclear bombs and nuclear power plants possible. But for many years, physicists believed it energetically impossible for atoms as large as uranium (atomic mass = 235 or 238) to be split into two. That all changed on Feb.
Air travel exposes you to radiation – how much health risk comes with it? - NewsBreak
Captain, we're being pummeled by cosmic rays! muratart via Shutterstock.com In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. That’s a lot of time up in the air.
Air travel exposes you to radiation - how much health risk comes with it?
In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. That’s a lot of time up in the air. If Stuker’s traveling behaviors are typical of other business flyers, he may have eaten 6,500 inflight meals, drunk 5,250 alcoholic beverages, watched thousands of inflight movies and made around 10,000 visits to airplane toilets.
Air travel exposes you to radiation - how much health risk comes with it?
In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. He would also have accumulated a radiation dose equivalent to about 1,000 chest x-rays. But what kind of health risk does all that radiation actually pose? Cosmic rays coming at you The major source of radiation exposure from air travel comes from the flight itself. This is because at high altitude the air gets thinner.
Air travel exposes you to radiation - how much health risk comes with it?
In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. That’s a lot of time up in the air. If Stuker’s traveling behaviors are typical of other business flyers, he may have eaten 6,500 inflight meals, drunk 5,250 alcoholic beverages, watched thousands of inflight movies and made around 10,000 visits to airplane toilets.
Air travel exposes you to radiation - how much health risk comes with it?
In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. That’s a lot of time up in the air. If Stuker’s traveling behaviors are typical of other business flyers, he may have eaten 6,500 inflight meals, drunk 5,250 alcoholic beverages, watched thousands of inflight movies and made around 10,000 visits to airplane toilets.
Air travel exposes you to radiation - how much health risk comes with it?
In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. That’s a lot of time up in the air. If Stuker’s traveling behaviors are typical of other business flyers, he may have eaten 6,500 inflight meals, drunk 5,250 alcoholic beverages, watched thousands of inflight movies and made around 10,000 visits to airplane toilets.
Air travel exposes you to radiation - how much health risk comes with it?
In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. That’s a lot of time up in the air. If Stuker’s traveling behaviors are typical of other business flyers, he may have eaten 6,500 inflight meals, drunk 5,250 alcoholic beverages, watched thousands of inflight movies and made around 10,000 visits to airplane toilets.
Air travel exposes you to radiation - how much health risk comes with it?
In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. He would also have accumulated a radiation dose equivalent to about 1,000 chest x-rays. But what kind of health risk does all that radiation actually pose? Cosmic rays coming at you The major source of radiation exposure from air travel comes from the flight itself. This is because at high altitude the air gets thinner.
Air travel exposes you to radiation - how much health risk comes with it?
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) (THE CONVERSATION) In 2017, business traveler Tom Stuker was hailed as the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over 14 years. That’s a lot of time up in the air.
Air travel exposes you to radiation - how much health risk comes with it?
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Quand les boissons énergisantes étaient chargées en radioactivité…
Certaines substances et produits sont aujourd'hui reconnus comme dangereux… Mais on leur a parfois prêté, par le passé, des vertus curatives ou de beauté. Erreur tragique. Le temps de notre série « Les fausses bonnes idées en santé », nous revenons sur la radioactivité, mais aussi l'alcool, l'héroïne, le pétrole et la cigarette. Les dangers de la radioactivité sont bien connus. Ils étaient déjà envisagés il y a un siècle. Ce qui n’a pas empêché des sociétés de vendre des boissons radioactives.
The best dinosaur show of the decade is based on ancient clues and fossils
Ever since Jurassic Park fascinated us with the first image of a gentle brachiosaurus roaming on a grassy plain, audiences have been waiting decades for another cinematic spectacle revealing new insights into dinosaurs and the prehistoric world. Now, the wait is finally over with the debut of Apple TV+’s visually stunning new series, Prehistoric Planet.
The surprising way psilocybin alters the brain’s chemistry to treat depression
Up to 30 percent of people with depression don’t respond to treatment with antidepressants. This may be down to differences in biology between patients and the fact that it often takes a long time to respond to the drugs – with some people giving up after a while. So there is an urgent need to expand the repertoire of drugs available to people with depression.
How electric eels inspired the first battery two centuries ago
As the world’s need for large amounts of portable energy grows at an ever-increasing pace, many innovators have sought to replace current battery technology with something better. Italian physicist Alessandro Volta tapped into fundamental electrochemical principles when he invented the first battery in 1800. Essentially, the physical joining of two different materials, usually metals, generates a chemical reaction that results in the flow of electrons from one material to the other.
The cluttercore TikTok trend has a surprising connection to Victorian England
Have you heard maximalism is in and minimalism is out? Rooms bursting at the seams with clashing florals, colorful furniture, and innumerable knick-knacks, this is what defines the new interiors trend cluttercore (or bricabracomania). Some say it’s a battle between Generation Z (born 1997-2012) and minimal millennials (born 1981-1996), symptomatic of bigger differences.
Bees and humans have a shocking skill in common, new study reveals
“Two, four, six, eight; bog in, don’t wait”. As children, we learn numbers can either be even or odd. And there are many ways to categorize numbers as even or odd. We may memorize the rule that numbers ending in 1, 3, 5, 7, or 9 are odd while numbers ending in 0, 2, 4, 6, or 8 are even. Or we may divide a number by 2 — where any whole number outcome means the number is even, otherwise it must be odd. Similarly, when dealing with real-world objects we can use pairing.
Pig-human heart transplants still have a long way to go
At the end of 2021, 57-year-old David Bennett Sr. was bedridden and on life-support with irreversible heart failure.
200 years ago, this terror of the Amazon inspired the world’s first batteries
Italian physicist Alessandro Volta tapped into fundamental electrochemical principles when he invented the first battery in 1800. Essentially, the physical joining of two different materials, usual metals, generates a chemical reaction that results in the flow of electrons from one material to the other. That stream of electrons represents portable energy that can be harnessed to generate power. The first materials people employed to make batteries were copper and zinc.
How electric eels inspired the first battery
As the world’s need for large amounts of portable energy grows at an ever-increasing pace, many innovators have sought to replace current battery technology with something better. Italian physicist Alessandro Volta tapped into fundamental electrochemical principles when he invented the first battery in 1800. Essentially, the physical joining of two different materials, usually metals, generates a chemical reaction that results in the flow of electrons from one material to the other.
Electric eels inspired the first battery 222 years ago and are still sparking scientific imagination
As the world’s need for large amounts of portable energy grows at an ever-increasing pace, many innovators have sought to replace current battery technology with something better. Italian physicist Alessandro Volta tapped into fundamental electrochemical principles when he invented the first battery in 1800. Essentially, the physical joining of two different materials, usually metals, generates a chemical reaction that results in the flow of electrons from one material to the other.
Scientists Look to Electric Eels for New Battery Technology
As the world’s need for large amounts of portable energy grows at an ever-increasing pace, many innovators have sought to replace current battery technology with something better. Italian physicist Alessandro Volta tapped into fundamental electrochemical principles when he invented the first battery in 1800. Essentially, the physical joining of two different materials, usually metals, generates a chemical reaction that results in the flow of electrons from one material to the other.
Timothy J. Jorgensen, The Conversation
Electric eels inspired the original battery—and could lead the way to the future.
Timothy J. Jorgensen
Timothy J. Jorgensen Timothy J. Jorgensen is associate professor of Radiation Medicine, and Director of the Health Physics and Radiation Protection Graduate Program, at Georgetown University in Washington DC. His scientific expertise is in radiation biology, cancer epidemiology, and public health. He is board certified in public health by the National Board of Public Health Examiners (NBPHE).
Electric eels inspired the first battery two centuries ago and now point a way to future battery technologies
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Is the human brain a biological computer?
March 14–20, 2022 is Brain Awareness Week—an annual global campaign to generate public support for brain science. Brain Awareness Week was founded by the Dana Alliance for Brain Initiatives (DABI) and the European Dana Alliance for the Brain (EDAB). The goal of this initiative is to foster enthusiasm among people about solving the many mysteries of the human brain.
The Italian Electrical Scientist Who (May Have) Inspired Frankenstein
Most people are familiar with Mary Shelley’s 1818 book Frankenstein, although fewer have actually read it. The multiple movie versions of the book have taken some liberties with the storyline, leaving some viewers with the erroneous impression that the monster in the story is named Frankenstein. The fictional monster actually has no name; rather, the book is named after the monster’s fictional creator, Dr. Victor Frankenstein.
When Benjamin Franklin Shocked Himself While Attempting to Electrocute a Turkey
The statesman was embarrassed by the mishap—no doubt a murder most fowl Most everyone knows that Benjamin Franklin was not only a famous statesman but also a great inventor and scientist, particularly in the field of electricity. He actually introduced much of the electrical terminology still in use today, including battery, conductor, positive charge, negative charge, current and discharge.
78 years ago, a daring Norwegian commando raid kept the Nazis from building the atomic bomb first
Editor’s Note: This article originally appeared on The Conversation After handing them their suicide capsules, Norwegian Royal Army Colonel Leif Tronstad informed his soldiers, “I cannot tell you why this mission is so important, but if you succeed, it will live in Norway’s memory for a hundred years.” These commandos did know, however, that an earlier attempt at the same mission by British soldiers had been a complete failure.
The Norwegian Attack on Heavy Water That Deprived the Nazis of the Atomic Bomb
The Nazi atomic effort relied on work done in this remote lab. Credit: grob831, CC BY. After handing them their suicide capsules, Norwegian Royal Army Colonel Leif Tronstad informed his soldiers, “I cannot tell you why this mission is so important, but if you succeed, it will live in Norway’s memory for a hundred years.” These commandos did know, however, that an earlier attempt at the same mission by British soldiers had been a complete failure.
Op-ed: A nuclear war would devastate the US, even if no one shot back
Joshua M. Pearce, Michigan Technological University 12 minutes ago An unarmed Trident II D5 missile launches from the Ohio-class ballistic missile submarine USS Nebraska (SSBN 739) off the coast of California on March 26, 2008. (Mass Communication Specialist 1st Class Ronald Gutridge/Navy) The White House’s 2021 budget calls for US$28.9 billion for the Pentagon for nuclear weapons and a 20 percent increase to $19.8 billion for the National Nuclear Security Administration.
77 years ago, a daring Norwegian commando raid kept the Nazis from building the atomic bomb first
The Vermork chemical plant that was Norwegian saboteurs’ target during Operation Gunnerside in 1943 (Wikimedia Commons/Flickr/Rjukan) Editor's Note: This article originally appeared on The Conversation After handing them their suicide capsules, Norwegian Royal Army Colonel Leif Tronstad informed his soldiers, “I cannot tell you why this mission is so important, but if you succeed, it will live in Norway’s memory for a hundred years.” These commandos did know, however, that an earlier attempt...
Air travel exposes you to radiation - how much health risk comes with it?
Travel 10.1.2020 11:17 am Timothy J. Jorgensen, Georgetown University Captain, we’re being pummelled by cosmic rays! muratart via Shutterstock.com The major source of radiation exposure from air travel comes from the flight itself. This past April, business traveller Tom Stuker became the world’s most frequent flyer, logging 18,000,000 miles of air travel on United Airlines over the last 14 years. That’s a lot of time up in the air.
Brew named for Navy nuke test draws criticism
HAGATNA, Guam — A Texas-based company is facing criticism for naming a beer after the location of nuclear tests that resulted in the contamination of a Pacific island chain, a report said. Manhattan Project Beer Company is under scrutiny by Marshall Islanders who were exposed to high levels of radiation by U.S. government research from 1946 to 1958, The Pacific Daily News reported Thursday.
Trump won’t impose foreign uranium quotas
WASHINGTON — President Donald Trump says he will not impose quotas on importing uranium, backing away from a possible trade confrontation and breaking with a Commerce Department assessment that America’s use of foreign uranium raises national security concerns. The decision is unusual for Trump, who has pointed to national security concerns in calling for restrictions on foreign metal and autos in trade negotiations. It's also drawing rare criticism from Republicans in energy-rich states.
That time the US dropped an atomic bomb on a fleet of 95 ships
In 1946, French fashion designer Jacques Heim released a woman’s swimsuit he called the “Atome” (French for “atom”) – a name selected to suggest its design would be as shocking to people that summer as the atomic bombings of Japan had been the summer before. Not to be outdone, competitor Louis Réard raised the stakes, quickly releasing an even more skimpy swimsuit.
Lise Meitner - the Forgotten Woman of Nuclear Physics Who Deserved a Nobel Prize
Nuclear fission – the physical process by which very large atoms like uranium split into pairs of smaller atoms – is what makes nuclear bombs and nuclear power plants possible. But for many years, physicists believed it energetically impossible for atoms as large as uranium (atomic mass = 235 or 238) to be split into two.
Meet Lise Meitner, the physicist who discovered how to split an atom
Nuclear fission – the physical process by which very large atoms like uranium split into pairs of smaller atoms – is what makes nuclear bombsand nuclear power plants possible. But for many years, physicists believed it energetically impossible for atoms as large as uranium (atomic mass = 235 or 238) to be split into two. That all changed on Feb.
The forgotten Jewish woman of nuclear physics who was denied a Nobel Prize
THE CONVERSATION VIA AP – the physical process by which very large atoms like uranium split into pairs of smaller atoms – is what makes nuclear bombs and nuclear power plants possible. But for many years, physicists believed it energetically impossible for atoms as large as uranium (atomic mass = 235 or 238) to be split into two. That all changed on Feb.
Lise Meitner - the forgotten woman of nuclear physics who deserved a Nobel Prize
(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) (THE CONVERSATION) Nuclear fission – the physical process by which very large atoms like uranium split into pairs of smaller atoms – is what makes nuclear bombs and nuclear power plants possible. But for many years, physicists believed it energetically impossible for atoms as large as uranium (atomic mass = 235 or 238) to be split into two. That all changed on Feb.
Lise Meitner - the forgotten woman of nuclear physics who deserved a Nobel Prize
Nuclear fission – the physical process by which very large atoms like uranium split into pairs of smaller atoms – is what makes nuclear bombs and nuclear power plants possible. But for many years, physicists believed it energetically impossible for atoms as large as uranium (atomic mass = 235 or 238) to be split into two. That all changed on Feb.
Lise Meitner — the forgotten woman of nuclear physics who deserved a Nobel Prize
Nuclear fission — the physical process by which very large atoms like uranium split into pairs of smaller atoms — is what makes nuclear bombs and nuclear power plants possible. But for many years, physicists believed it energetically impossible for atoms as large as uranium (atomic mass = 235 or 238) to be split into two. That all changed on Feb.
What Are "Little Curies"? How Scientist Marie Curie Became a WWI Hero
From the Lab to the Battlefield: How Marie Curie Became a WWI Hero She decided not to make weapons, but to save lives. Ask people to name the most famous historical woman of science and their answer will likely be: Madame Marie Curie. Push further and ask what she did, and they might say it was something related to radioactivity. (She actually discovered the radioisotopes radium and polonium.) Some might also know that she was the first woman to win a Nobel Prize.
Marie Curie and her X-ray vehicles' contribution to World War I battlefield medicine
Ask people to name the most famous historical woman of science and their answer will likely be: Madame Marie Curie. Push further and ask what she did, and they might say it was something related to radioactivity. (She actually discovered the radioisotopes radium and polonium.) Some might also know that she was the first woman to win a Nobel Prize. (She actually won two.) But few will know she was also a major hero of World War I.
'Acceptable risk' is a better way to think about radiation exposure in Fukushima
On March 11, 2011, the Fukushima Prefecture of Japan experienced multiple nuclear reactor meltdowns as a consequence of an earthquake and a subsequent tsunami. The meltdowns resulted in the release of radioactivity into the environment and 150,000 people were evacuated from their homes specifically due to radiation concerns. Now, five years later, many of these people remain refugees, unable to return home for fear of radiation exposure.
75 Years Ago, A Daring Commando Raid Kept The Nazis From Building The Atomic Bomb First
After handing them their suicide capsules, Norwegian Royal Army Colonel Leif Tronstad informed his soldiers, “I cannot tell you why this mission is so important, but if you succeed, it will live in Norway’s memory for a hundred years.” These commandos did know, however, that an earlier attempt at the same mission by British soldiers had been a complete failure. Two gliders transporting the men had both crashed while en route to their target.
How a Sneak Attack By Norway's Skiing Soldiers Deprived the Nazis of the Atomic Bomb
After handing them their suicide capsules, Norwegian Royal Army Colonel Leif Tronstad informed his soldiers, “I cannot tell you why this mission is so important, but if you succeed, it will live in Norway’s memory for a hundred years.” These commandos did know, however, that an earlier attempt at the same mission by British soldiers had been a complete failure. Two gliders transporting the men had both crashed while en route to their target.
75 years ago, Norwegian commandos pulled of a daring raid that kept the Nazis from building a nuclear bomb
After handing them their suicide capsules, Norwegian Royal Army Colonel Leif Tronstad informed his soldiers, "I cannot tell you why this mission is so important, but if you succeed, it will live in Norway's memory for a hundred years." These commandos did know, however, that an earlier attempt at the same mission by British soldiers had been a complete failure. Two gliders transporting the men had both crashed while en route to their target.
Operation Gunnerside: The Norwegian Attack on Heavy Water That Deprived the Nazis of the Atomic Bomb
After handing them their suicide capsules, Norwegian Royal Army Colonel Leif Tronstad informed his soldiers, “I cannot tell you why this mission is so important, but if you succeed, it will live in Norway’s memory for a hundred years.” These commandos did know, however, that an earlier attempt at the same mission by British soldiers had been a complete failure. Two gliders transporting the men had both crashed while en route to their target.
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