Dr Karl Kruszelnicki
@doctorkarl.bsky.social
2.1K followers 8 following 300 posts
Dr Karl Kruszelnicki ~ an answer looking for a question. I do not endorse any commercial products.
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doctorkarl.bsky.social
"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...
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
doctorkarl.bsky.social
"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/...
After using ChatGPT, man swaps his salt for sodium bromide—and suffers psychosis
Literal “hallucinations” were the result.
arstechnica.com
doctorkarl.bsky.social
"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-...
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
doctorkarl.bsky.social
"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-...
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
doctorkarl.bsky.social
"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...
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
doctorkarl.bsky.social
"France currently has a nuclear weapons stockpile of approximately 290 warheads. In addition, approximately 80 retired warheads are awaiting dismantlement, giving a total inventory of approximately 370 nuclear warheads."
thebulletin.org/premium/2025...
French nuclear weapons, 2025
France’s nuclear weapons arsenal has remained stable in recent years at approximately 290 warheads, but the country is modernizing its ballistic missiles, cruise missiles, submarines, aircraft, and nu...
thebulletin.org
doctorkarl.bsky.social
" long-term exposure to wood-heater smoke causes 729 premature deaths every year in Australia, which is more than the deaths attributable to emissions from the national fleet of 20 million vehicles, or from energy generation, or even bushfires."
www.abc.net.au/news/science...
Wood heater smoke is a silent killer but one city tops the list
Wood heaters are estimated to be responsible for more pollution-related deaths than all the cars on our roads. This national map shows which areas are affected the most.
www.abc.net.au
doctorkarl.bsky.social
"Most beaches have a natural defense against rising seas: The sandy area simply moves landward.
Geologists call it coastal squeeze.
“Are you going to save the beach house, or do you want to save the beach?” “Because you cannot save them both.”"
www.nytimes.com/2025/07/19/c...
An Ancient Law Could Shape the Modern Future of America’s Beaches. Here’s How.
www.nytimes.com
doctorkarl.bsky.social
"rotor diameter of 262 metres, 68 million kWh of clean electricity each year – = 40,000 households – the turbine blades, will have a swept area of 53,000 square metres.
The playing surface of the Melbourne Cricket Ground (MCG) ~ 20,000 square metres."
reneweconomy.com.au/worlds-most-...
World's most powerful floating offshore wind turbine rolls off production line in China | RenewEconomy
Two Chinese state-owned companies have produced the world’s most powerful direct-drive floating offshore wind turbine, ready for real-world testing.
reneweconomy.com.au
doctorkarl.bsky.social
" regulation of facial hair in France had its roots in the era of colonialist expansion/Industrial Revolution. Less wealthy people had acquired more access to what had traditionally been luxury goods, so the elite turned to something money couldn’t buy "
www.atlasobscura.com/articles/fre...
In 1907, Parisian Waiters Went on Strike for the Right to Grow Mustaches
You gotta fight for your right to whiskers.
www.atlasobscura.com
doctorkarl.bsky.social
"Solar power generated more electricity than any other source in the EU last month.
New data shows that solar accounted for 22.1 % of the EU’s electricity mix in June 2025, narrowly overtaking nuclear – and, notably, far outpacing fossil fuels."
www.euronews.com/green/2025/0...
Solar becomes EU’s largest electricity source for the first time
The Netherlands and Greece were the top solar record setters, while wind power also hit new highs in May and June.
www.euronews.com
doctorkarl.bsky.social
"increases in extreme temperatures due to climate change varied 2-4 degrees Celsius, making a huge difference in how the heat is experienced and,... nearly tripling the estimated number of excess deaths across the 12 cities in the recent heatwave."
www.statista.com/chart/34783/...
Infographic: Climate Change Tripled Heat Deaths in European Heatwave
This chart shows the estimated number of excess heat-related deaths in the June/July 2025 European heatwave and the impact of climate change on excess deaths.
www.statista.com
doctorkarl.bsky.social
"BEVs produce 73% less life-cycle greenhouse gas emissions than equivalent gasoline-powered counterpart – factoring in production of vehicle.
Using renewable electricity to charge a BEV, car’s life-cycle emissions fell 78 % lower than ICE vehicles."
thedriven.io/2025/07/09/e...
EVs are already 73 pct cleaner than ICE vehicles, and getting cleaner faster than thought
Full battery EVs are 73 pct cleaner than internal combustion cars, and even more so when powered only with renewables. The benefits of hybrids are much lower.
thedriven.io
doctorkarl.bsky.social
"A study in the journal Nature estimates the volume of nanoplastics, which are even smaller than microplastics and invisible to the naked eye, to be at least 27 million metric tons in North Atlantic seas — more than the weight of all wild land mammals."
www.nytimes.com/2025/07/09/c...
Tons of Invisible Plastic Pieces Lurk in Ocean Water
www.nytimes.com
doctorkarl.bsky.social
"East Asia’s rainy season has traditionally run from middle of June -July, when a stationary weather front brings prolonged rainfall to the region. But annual rains have become less predictable since the late 1990s, ... climate change is a major factor."
www.nytimes.com/2025/07/09/w...
Umbrellas Optional? East Asia’s Monsoon Rains Are No Longer a Sure Thing
www.nytimes.com
doctorkarl.bsky.social
" a team of scientists analyzed the mist from popular vapes and found such high levels of heavy metals that one researcher thought their machine had malfunctioned. Other studies have suggested that vaping can affect the heart, lungs and brain."
www.nytimes.com/2025/07/09/w...
Just How Harmful Is Vaping? More Evidence Is Emerging.
www.nytimes.com
doctorkarl.bsky.social
"1954-2022 for the world to install a terawatt of solar power; the second terawatt in 2024, and the third will arrive either late 2025/early 2026
We now install a gigawatt’s worth of solar panels (~ one coal-fired plant), every fifteen hours."
www.newyorker.com/news/annals-...
4.6 Billion Years On, the Sun Is Having a Moment
In the past two years, without much notice, solar power has begun to truly transform the world’s energy system.
www.newyorker.com
doctorkarl.bsky.social
"tonic immobility is triggered when the animal is turned upside down – it stops moving, its muscles relax, and it enters a trance-like state. Some scientists even use tonic immobility as a technique to safely handle certain shark species."
theconversation.com/sharks-freez...
Sharks freeze when you turn them upside down – and there’s no good reason why
Rather than a clever survival tactic, tonic immobility might just be ‘evolutionary baggage’.
theconversation.com
doctorkarl.bsky.social
"25 years after measles was officially declared eliminated from the United States, this spring marked a harrowing time of rediscovery. ... one of the largest outbreaks in a generation, spreading through communities with declining vaccination rates."
www.nytimes.com/2025/06/22/u...
‘I Feel Like I’ve Been Lied To’: When a Measles Outbreak Hits Home
www.nytimes.com
doctorkarl.bsky.social
"Most lithium-based batteries have only been able to harness one- or two-electron reactions, limiting the amount of energy they can store. This cutting-edge development, has a four-electron chemical reaction."
interestingengineering.com/energy/solid...
Solid lithium-air battery delivers 4x energy, 1,000 lifecycles
Backed by the DOE, a solid lithium-air battery delivers a first: a four-electron reaction at room temperature.
interestingengineering.com