Dr Karl Kruszelnicki
@doctorkarl.bsky.social
Dr Karl Kruszelnicki ~ an answer looking for a question.
I do not endorse any commercial products.
I do not endorse any commercial products.
Reposted by Dr Karl Kruszelnicki
Thinking of trying a detox? Here’s what you need to know first
theconversation.com/thinking-of-...
theconversation.com/thinking-of-...
Thinking of trying a detox? Here’s what you need to know first
There are a number of ways to ‘detox’. But do they work? And are they safe?
theconversation.com
January 4, 2026 at 10:59 PM
Thinking of trying a detox? Here’s what you need to know first
theconversation.com/thinking-of-...
theconversation.com/thinking-of-...
"But there were some P waves that should not have been there if the center of the Earth had only a liquid core. Lehmann concluded that the most likely explanation was that the P waves had encountered an even more dense, superheated inner core."
www.nytimes.com/2025/12/20/o...
www.nytimes.com/2025/12/20/o...
Overlooked No More: Inge Lehmann, Who Discovered the Earth’s Inner Core
www.nytimes.com
December 22, 2025 at 3:24 AM
"But there were some P waves that should not have been there if the center of the Earth had only a liquid core. Lehmann concluded that the most likely explanation was that the P waves had encountered an even more dense, superheated inner core."
www.nytimes.com/2025/12/20/o...
www.nytimes.com/2025/12/20/o...
"This year, renewables surpassed coal as a source of electricity worldwide, and solar and wind energy grew fast enough to cover the entire increase in global electricity use from January to June"
www.science.org/content/arti...
www.science.org/content/arti...
Science’s 2025 Breakthrough of the Year: The unstoppable rise of renewable energy
Clean energy infrastructure is being deployed with unmatched scale and speed—and China is leading the way
www.science.org
December 20, 2025 at 5:52 AM
"This year, renewables surpassed coal as a source of electricity worldwide, and solar and wind energy grew fast enough to cover the entire increase in global electricity use from January to June"
www.science.org/content/arti...
www.science.org/content/arti...
"First, how many microbes does a single fly typically carry? And second, how many microbes does it take to get people sick?"
www.the-scientist.com/what-happens...
www.the-scientist.com/what-happens...
What Happens When a Fly Lands on Your Food?
Flies carrying disease-causing microbes will likely contaminate the food they touch, but different factors determine whether the person who eats it will get sick.
www.the-scientist.com
December 13, 2025 at 9:22 PM
"First, how many microbes does a single fly typically carry? And second, how many microbes does it take to get people sick?"
www.the-scientist.com/what-happens...
www.the-scientist.com/what-happens...
Almost Dangerous
"Commercial aircraft — 40,000 feet (12 kilometers) — radiation briefly rose. Such radiation levels for more than 12 hours→pregnant women exceed officially considered as safe for a fetus. In this case, the worst was over in about 2 hours"
www.space.com/astronomy/su...
"Commercial aircraft — 40,000 feet (12 kilometers) — radiation briefly rose. Such radiation levels for more than 12 hours→pregnant women exceed officially considered as safe for a fetus. In this case, the worst was over in about 2 hours"
www.space.com/astronomy/su...
Rare solar flare caused radiation in Earth's atmosphere to spike to highest levels in nearly 20 years, researchers say
Radiation levels at airline flight altitudes briefly reached levels that could be potentially harmful to pregnant women.
www.space.com
December 6, 2025 at 11:37 PM
Almost Dangerous
"Commercial aircraft — 40,000 feet (12 kilometers) — radiation briefly rose. Such radiation levels for more than 12 hours→pregnant women exceed officially considered as safe for a fetus. In this case, the worst was over in about 2 hours"
www.space.com/astronomy/su...
"Commercial aircraft — 40,000 feet (12 kilometers) — radiation briefly rose. Such radiation levels for more than 12 hours→pregnant women exceed officially considered as safe for a fetus. In this case, the worst was over in about 2 hours"
www.space.com/astronomy/su...
"Google once the primary source of informal medical advice, people now turn to social networks (29%) & artificial intelligence (AI) chatbots (40%).
Social media posts are often subjective, anecdotal, and in some cases tied to commercial interests."
www.medscape.com/viewarticle/...
Social media posts are often subjective, anecdotal, and in some cases tied to commercial interests."
www.medscape.com/viewarticle/...
Wildest Myths Patients Still Bring Into the Exam Room
Clinicians say debunking misinformation in the exam room consumes valuable consultation time and often requires delicate, empathetic communication.
www.medscape.com
December 6, 2025 at 10:36 PM
"Google once the primary source of informal medical advice, people now turn to social networks (29%) & artificial intelligence (AI) chatbots (40%).
Social media posts are often subjective, anecdotal, and in some cases tied to commercial interests."
www.medscape.com/viewarticle/...
Social media posts are often subjective, anecdotal, and in some cases tied to commercial interests."
www.medscape.com/viewarticle/...
"peanut butter to its most basic components, this creamy treat packs peanuts rich in protein and fat as well as, in many varieties, added sugar. These three macronutrients each contribute to possible biological drivers for dogs’ peanut butter preferences."
www.the-scientist.com/why-do-dogs-...
www.the-scientist.com/why-do-dogs-...
Why Do Dogs Love Peanut Butter?
The reason dogs beg, sit, stay, and shake for peanut butter could be both evolutionarily wired and learned behavior.
www.the-scientist.com
December 6, 2025 at 9:20 PM
"peanut butter to its most basic components, this creamy treat packs peanuts rich in protein and fat as well as, in many varieties, added sugar. These three macronutrients each contribute to possible biological drivers for dogs’ peanut butter preferences."
www.the-scientist.com/why-do-dogs-...
www.the-scientist.com/why-do-dogs-...
"Studies in mice → pigment used in tattoos accumulates in the lymph nodes & might affect immune responses. Ink remained in the lymph nodes for months &varying effects: it weakened animals’ response to a COVID vaccine but increased reaction to an influenza vaccine."
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
Tattoo ink induces inflammation in the draining lymph node and alters the immune response to vaccination | PNAS
Despite safety concerns regarding the toxicity of tattoo ink, no studies have reported
the consequences of tattooing on the immune response. In thi...
www.pnas.org
December 6, 2025 at 8:00 AM
"Studies in mice → pigment used in tattoos accumulates in the lymph nodes & might affect immune responses. Ink remained in the lymph nodes for months &varying effects: it weakened animals’ response to a COVID vaccine but increased reaction to an influenza vaccine."
www.pnas.org/doi/10.1073/...
www.pnas.org/doi/10.1073/...
"The Black Death (single most deadly documented pandemic in human history) in 1347 C.E., eliminated more than half Europe’s population.
Researcher→cool weather spurred by previously unidentified volcanic eruptions set into motion a deadly chain of events."
www.science.org/content/arti...
Researcher→cool weather spurred by previously unidentified volcanic eruptions set into motion a deadly chain of events."
www.science.org/content/arti...
Medieval volcano may have indirectly sparked Europe’s Black Death
Crop failures caused by eruptions possibly forced grain imports from plague-ridden regions
www.science.org
December 6, 2025 at 7:02 AM
"The Black Death (single most deadly documented pandemic in human history) in 1347 C.E., eliminated more than half Europe’s population.
Researcher→cool weather spurred by previously unidentified volcanic eruptions set into motion a deadly chain of events."
www.science.org/content/arti...
Researcher→cool weather spurred by previously unidentified volcanic eruptions set into motion a deadly chain of events."
www.science.org/content/arti...
"An mRNA based flu vaccine is 34.5% more effective against influenza-like illness compared to current flu vaccines. The study included over 18,000 people, half of whom were given the mRNA vaccine and half of whom were given a conventional flu vaccine."
www.scimex.org/newsfeed/exp...
www.scimex.org/newsfeed/exp...
EXPERT REACTION: mRNA flu vaccine is up to 34.5% more effective than c
EXPERT REACTION: mRNA flu vaccine is up to 34.5% more effective than current flu vaccines
An mRNA based flu vaccine, which has been developed by Pfizer, is 34.5% more effective against inf
www.scimex.org
November 22, 2025 at 2:46 AM
"An mRNA based flu vaccine is 34.5% more effective against influenza-like illness compared to current flu vaccines. The study included over 18,000 people, half of whom were given the mRNA vaccine and half of whom were given a conventional flu vaccine."
www.scimex.org/newsfeed/exp...
www.scimex.org/newsfeed/exp...
"Centrifugal motion. Perpetual bliss. The thrill of the moment. Unstoppable. In technical terms, it is “non-agonistic interaction involving directed, intraspecific, oral-oral contact with some movement of the lips/mouthparts and no food transfer.”"
www.nytimes.com/2025/11/19/s...
www.nytimes.com/2025/11/19/s...
Kissing Has Existed for at Least 16 Million Years, Scientists Say
www.nytimes.com
November 22, 2025 at 2:43 AM
"Centrifugal motion. Perpetual bliss. The thrill of the moment. Unstoppable. In technical terms, it is “non-agonistic interaction involving directed, intraspecific, oral-oral contact with some movement of the lips/mouthparts and no food transfer.”"
www.nytimes.com/2025/11/19/s...
www.nytimes.com/2025/11/19/s...
"“This object is a comet. It looks and behaves like a comet.”
NASA officials presented a series of images taken by the fleet of spacecraft, including the Mars Reconnaissance Orbiter, the Lucy mission, and the Solar and Heliospheric Observatory."
www.nytimes.com/2025/11/19/s...
NASA officials presented a series of images taken by the fleet of spacecraft, including the Mars Reconnaissance Orbiter, the Lucy mission, and the Solar and Heliospheric Observatory."
www.nytimes.com/2025/11/19/s...
NASA Releases Images of Comet 3I/ATLAS: It ‘Doesn’t Look Like a Spacecraft’
www.nytimes.com
November 22, 2025 at 1:51 AM
"“This object is a comet. It looks and behaves like a comet.”
NASA officials presented a series of images taken by the fleet of spacecraft, including the Mars Reconnaissance Orbiter, the Lucy mission, and the Solar and Heliospheric Observatory."
www.nytimes.com/2025/11/19/s...
NASA officials presented a series of images taken by the fleet of spacecraft, including the Mars Reconnaissance Orbiter, the Lucy mission, and the Solar and Heliospheric Observatory."
www.nytimes.com/2025/11/19/s...
" first death linked to a severe meat allergy caused by a tick bite. The man, who died in 2024 after eating a burger, had alpha-gal syndrome, a disease triggered by tick bites→ develop anaphylactic reactions to red meat and other animal-based products."
www.scientificamerican.com/article/man-...
www.scientificamerican.com/article/man-...
Man With Tick-Borne Meat Allergy Dies after Eating Burger
Lone star tick bites are the most common cause of alpha-gal syndrome, which causes severe allergic reactions to red meat
www.scientificamerican.com
November 20, 2025 at 8:37 AM
" first death linked to a severe meat allergy caused by a tick bite. The man, who died in 2024 after eating a burger, had alpha-gal syndrome, a disease triggered by tick bites→ develop anaphylactic reactions to red meat and other animal-based products."
www.scientificamerican.com/article/man-...
www.scientificamerican.com/article/man-...
"Canada has lost its measles-free status following a year of ongoing measles transmission.
The Americas became the first region in the world to be declared free of the disease in 2016, following a 22-year regional campaign."
www.scientificamerican.com/article/cana...
The Americas became the first region in the world to be declared free of the disease in 2016, following a 22-year regional campaign."
www.scientificamerican.com/article/cana...
The Americas Are No Longer Officially Measles-Free
Canada lost its official measles elimination status after a year of continuous transmission
www.scientificamerican.com
November 20, 2025 at 8:34 AM
"Canada has lost its measles-free status following a year of ongoing measles transmission.
The Americas became the first region in the world to be declared free of the disease in 2016, following a 22-year regional campaign."
www.scientificamerican.com/article/cana...
The Americas became the first region in the world to be declared free of the disease in 2016, following a 22-year regional campaign."
www.scientificamerican.com/article/cana...
Reposted by Dr Karl Kruszelnicki
Do food marketers target #children? What can we do about it? I talk with Jane Martin from Food for Health Alliance for #NutritionScienceBites podcast @nmnteatwell.bsky.social @hmriaustralia.bsky.social 📺 youtu.be/dAcHzj5zKr8 🎧 shorturl.at/MJ0tk
Do food marketers target children? What can we do about it? Listen - we said 'brands off our kids'!
YouTube video by Nutrition Science Bites
youtu.be
October 28, 2025 at 8:21 AM
Do food marketers target #children? What can we do about it? I talk with Jane Martin from Food for Health Alliance for #NutritionScienceBites podcast @nmnteatwell.bsky.social @hmriaustralia.bsky.social 📺 youtu.be/dAcHzj5zKr8 🎧 shorturl.at/MJ0tk
Reposted by Dr Karl Kruszelnicki
Our very own Professor Leszek Lisowski was chosen to star on Dr Karl Kruszelnicki podcast Shirtloads of Science to talk about his extraordinary work with viral vectors. Learn more about his lab at CMRI by listening here: https://www.youtube.com/watch?v=10e2VcSmIRA
October 29, 2025 at 8:00 AM
Our very own Professor Leszek Lisowski was chosen to star on Dr Karl Kruszelnicki podcast Shirtloads of Science to talk about his extraordinary work with viral vectors. Learn more about his lab at CMRI by listening here: https://www.youtube.com/watch?v=10e2VcSmIRA
Reposted by Dr Karl Kruszelnicki
One more 😴 till I catch up with @abcaustralia.bsky.social
#ScienceHour on #TripleJ with @doctorkarl.bsky.social and Lucy Smith! Get your #Nutrition #Science questions ready!
#ScienceHour on #TripleJ with @doctorkarl.bsky.social and Lucy Smith! Get your #Nutrition #Science questions ready!
a woman is holding a cell phone in her hands and says `` wait til i tell you this '' .
ALT: a woman is holding a cell phone in her hands and says `` wait til i tell you this '' .
media.tenor.com
September 23, 2025 at 10:55 PM
One more 😴 till I catch up with @abcaustralia.bsky.social
#ScienceHour on #TripleJ with @doctorkarl.bsky.social and Lucy Smith! Get your #Nutrition #Science questions ready!
#ScienceHour on #TripleJ with @doctorkarl.bsky.social and Lucy Smith! Get your #Nutrition #Science questions ready!
Reposted by Dr Karl Kruszelnicki
"Science Under Siege with Prof. Michael Mann & Prof. Peter Hotez" | @peterhotezmdphd.bsky.social & I discussed our new book #ScienceUnderSiege with the great @doctorkarl.bsky.social on the #ShirtloadsOfScience podcast: shirtloadsofscience.libsyn.com/science-unde...
Shirtloads of Science: Science Under Siege with Prof. Michael Mann & Prof. Peter Hotez (443)
In this episode, we sit down with two of today’s most prominent defenders of science: Professor Michael Mann, world-renowned climate scientist, and Professor Peter Hotez, vaccine researcher and advoca...
shirtloadsofscience.libsyn.com
September 16, 2025 at 11:57 AM
"Science Under Siege with Prof. Michael Mann & Prof. Peter Hotez" | @peterhotezmdphd.bsky.social & I discussed our new book #ScienceUnderSiege with the great @doctorkarl.bsky.social on the #ShirtloadsOfScience podcast: shirtloadsofscience.libsyn.com/science-unde...
"Pseudoscience Red Flags
1. Unfalsifiable Claims.
2. Reversing the Burden of Proof
3. Special Pleading (Explaining Away Negative Findings)
4. Cherry-Picking Data
5. Misusing Science Jargon
6. Overconfidence and Absolute Language
and so on ..."
www.psychologytoday.com/au/blog/crit...
1. Unfalsifiable Claims.
2. Reversing the Burden of Proof
3. Special Pleading (Explaining Away Negative Findings)
4. Cherry-Picking Data
5. Misusing Science Jargon
6. Overconfidence and Absolute Language
and so on ..."
www.psychologytoday.com/au/blog/crit...
A Simple Guide to Spotting Pseudoscience
Learn what pseudoscience is, why it’s persuasive, and how to recognize it so that you can stay open-minded without being misled.
www.psychologytoday.com
August 29, 2025 at 4:02 AM
"Pseudoscience Red Flags
1. Unfalsifiable Claims.
2. Reversing the Burden of Proof
3. Special Pleading (Explaining Away Negative Findings)
4. Cherry-Picking Data
5. Misusing Science Jargon
6. Overconfidence and Absolute Language
and so on ..."
www.psychologytoday.com/au/blog/crit...
1. Unfalsifiable Claims.
2. Reversing the Burden of Proof
3. Special Pleading (Explaining Away Negative Findings)
4. Cherry-Picking Data
5. Misusing Science Jargon
6. Overconfidence and Absolute Language
and so on ..."
www.psychologytoday.com/au/blog/crit...
Reposted by Dr Karl Kruszelnicki
Can an AI chatbot of @doctorkarl.bsky.social change climate sceptics’ minds? He’s willing to give it a try www.theguardian.com/technology/2...
Can an AI chatbot of Dr Karl change climate sceptics’ minds? He’s willing to give it a try
The famous science communicator is planning to release a chatbot designed to answer questions about the climate crisis. Can it work?
www.theguardian.com
August 13, 2025 at 11:01 AM
Can an AI chatbot of @doctorkarl.bsky.social change climate sceptics’ minds? He’s willing to give it a try www.theguardian.com/technology/2...
"the man's bromide level was eventually measured at a whopping 1,700 mg/L, while the "reference range" for healthy people is 0.9 to 7.3 mg/L.
... a terrifying psychosis and kept in the hospital for 3 full weeks over an entirely preventable condition."
arstechnica.com/health/2025/...
... a terrifying psychosis and kept in the hospital for 3 full weeks over an entirely preventable condition."
arstechnica.com/health/2025/...
After using ChatGPT, man swaps his salt for sodium bromide—and suffers psychosis
Literal “hallucinations” were the result.
arstechnica.com
August 10, 2025 at 10:52 AM
"the man's bromide level was eventually measured at a whopping 1,700 mg/L, while the "reference range" for healthy people is 0.9 to 7.3 mg/L.
... a terrifying psychosis and kept in the hospital for 3 full weeks over an entirely preventable condition."
arstechnica.com/health/2025/...
... a terrifying psychosis and kept in the hospital for 3 full weeks over an entirely preventable condition."
arstechnica.com/health/2025/...
"the wolves are said to be distinct from robot combat dogs, according to a previous release. While the agile and lightweight robot dogs specialize in reconnaissance, these robot wolves are specifically meant for combat."
futurism.com/china-armed-...
futurism.com/china-armed-...
China Shows Off Armed Attack Robots
The Chinese state broadcasting group recently released footage of its newly developed "robot wolves" in simulated combat drills.
futurism.com
August 10, 2025 at 10:47 AM
"the wolves are said to be distinct from robot combat dogs, according to a previous release. While the agile and lightweight robot dogs specialize in reconnaissance, these robot wolves are specifically meant for combat."
futurism.com/china-armed-...
futurism.com/china-armed-...
"OpenAI burns through $2.50 for every dollar it brings in.
OpenAI — 6 years on — won't reach a positive cash flow until 2029 at the earliest.
Microsoft — backing OpenAI — expect to spend upwards of $400 billion to keep the AI dream alive in 2025 alone."
futurism.com/ai-industry-...
OpenAI — 6 years on — won't reach a positive cash flow until 2029 at the earliest.
Microsoft — backing OpenAI — expect to spend upwards of $400 billion to keep the AI dream alive in 2025 alone."
futurism.com/ai-industry-...
AI Industry Nervous About Small Detail: They're Not Making Any Real Money
The AI industry is struggling to make a dent in its expenditures, as the vast majority of users remain content to use its free model.
futurism.com
August 10, 2025 at 10:45 AM
"OpenAI burns through $2.50 for every dollar it brings in.
OpenAI — 6 years on — won't reach a positive cash flow until 2029 at the earliest.
Microsoft — backing OpenAI — expect to spend upwards of $400 billion to keep the AI dream alive in 2025 alone."
futurism.com/ai-industry-...
OpenAI — 6 years on — won't reach a positive cash flow until 2029 at the earliest.
Microsoft — backing OpenAI — expect to spend upwards of $400 billion to keep the AI dream alive in 2025 alone."
futurism.com/ai-industry-...
"For decades the UK has sought a solution to the nuclear waste its fleet of submarines generates. After decades of fruitless search there are “ongoing discussions” but still no place for radioactive waste to be permanently stored.
Similarly, in the US..."
www.theguardian.com/world/2025/a...
Similarly, in the US..."
www.theguardian.com/world/2025/a...
The lethal legacy of Aukus nuclear submarines will remain for millennia – and there’s no plan to deal with it
Australia’s future nuclear submarines will produce highly radioactive waste, and allies in the UK and the US still don’t have a safe place to store their own
www.theguardian.com
August 10, 2025 at 9:56 AM
"For decades the UK has sought a solution to the nuclear waste its fleet of submarines generates. After decades of fruitless search there are “ongoing discussions” but still no place for radioactive waste to be permanently stored.
Similarly, in the US..."
www.theguardian.com/world/2025/a...
Similarly, in the US..."
www.theguardian.com/world/2025/a...
" nearly 100 wind farms operating on Australia’s main grid set a new peak of 10.16 gigawatts (GW).
Battery storage hit a new peak of 2,045 megawatts (2 GW) in the evening peak at 5.55pm on June 20."
reneweconomy.com.au/wind-output-...
Battery storage hit a new peak of 2,045 megawatts (2 GW) in the evening peak at 5.55pm on June 20."
reneweconomy.com.au/wind-output-...
Wind output smashes through 10 GW barrier for first time on Australia’s main grid
Wind and big batteries pass significant milestones on Australia’s main grid, and new output records also set for wind in South Australia and wind and solar in Queensland.
reneweconomy.com.au
July 29, 2025 at 7:06 AM
" nearly 100 wind farms operating on Australia’s main grid set a new peak of 10.16 gigawatts (GW).
Battery storage hit a new peak of 2,045 megawatts (2 GW) in the evening peak at 5.55pm on June 20."
reneweconomy.com.au/wind-output-...
Battery storage hit a new peak of 2,045 megawatts (2 GW) in the evening peak at 5.55pm on June 20."
reneweconomy.com.au/wind-output-...