Category Archives: Science

Hydrogen – the next hoax, after nuclear energy

I’ve been telling this story since the nineties, but the players don’t listen, because they don’t want to. Hydrogen and fuel cells are one way of driving electric cars, but far from the best. There may be some aspects that are helpful, but the downsides are way too big. But – and that is why it is being pushed – you need a monoplists’ industry behind it – that is what drives the wet dreams of leaders in tech – and which I don’t understand. Not at all.

 The Hydrogen Hoax – The New Atlantis … :

The New Energy Charlatans

The idea of hydrogen as the fuel of the future dates back to Jules Verne, and by the 1930s was a staple of science fiction. With the advent of nuclear energy after World War II, technologists expected that atomic power would provide electricity “too cheap to meter” — electricity that could be used to produce pure hydrogen at low cost, which could then be used as a fuel. By the 1970s, however, it was apparent that nuclear energy, while potentially competitive with conventional power, did not usher in a new golden age of cheap electricity. Still, researchers devoted to the idea of the “hydrogen economy” soldiered on, and with increased public concern about carbon dioxide emissions in the 1990s and about America’s dependence on foreign oil after 9/11, the pro-hydrogen crowd seized a new opportunity to make their pitch. Incredibly, the Bush administration swallowed it, hook, line, and sinker. As a result, over the past six years, billions of dollars have been dished out to national labs, auto companies, fuel-cell firms, and other beneficiaries of government largesse on hydrogen show projects that have no practical application.

Diet Coke anybody?

New research casts doubts on safety of world’s most popular artificial sweetener : Press releases : … : News : University of Sussex … :

The new study points out the EFSA panel discounted the results of every single one of 73 studies that indicated that aspartame could be harmful while treating 84% of studies providing no prima facie evidence of harm as unproblematically reliable. Since 1974, studies and scientists have warned of the risks of brain damage, liver and lung cancer, brain lesions and neuroendocrine disorders from consuming Nutrasweet, which is found in thousands of products around the world including diet soft drinks.

This world is burning like it never did before

 How global warming is unlike the last 2,000 years of climate shifts | Science News … :

Temperatures across 98 percent of Earth’s surface were hotter at the end of the 20th century than at any time in the previous 2,000 years. Such nearly universal warming, occurring in lockstep across the planet, is unique to this current era, scientists say. By contrast, other well-known cold and warm snaps of the past, such as the Little Ice Age or the Medieval Warm Period, were, in fact, regional rather than worldwide.

#FLOGW

Hedy Lamarr’s grave in Vienna

Now that is a tombstone that suits the person. Beautiful, as she was. Both in appearance and genius. For those of you that don’t know her: She invented frequency hopping – without which lots of the things we do today with mobile networks and roaming wouldn’t be possible. And she performed the first femal orgasm on film. Not in porn, in a decent movie. Thanks, Bösi, for this beautiful memory. 

Lionesses safeguard their investments by mating with multiple males.

What a beautiful cover… Battle of the sexes: a multi-male mating strategy helps lionesses win the gender war of fitness | Behavioral Ecology | Oxford Academic … : 

“By mating with multiple males, lionesses safeguard their investments and outdo the males in the war of fitness.

Battle of the sexes: a multi-male mating strategy helps lionesses win the gender war of fitness”  

Given a land-tenure system where lionesses encounter many males capable of killing unfamiliar cubs, multi-male mating buffers cub infanticide and likely diversifies paternal lineages in litters. Consequently, infanticide was observed only when “new” males invaded a female group’s territory. An age-based mate choice was observed in lionesses: maiden breeders chose males having highest range overlaps, whereas experienced females selected peripheral males. The intergender spacing patterns and resultant sexual strategies of lions differ in Asia and Africa probably because of contrasting resource availability, highlighting behavioral plasticity within species inhabiting diverse eco-regions.”

First step into parallel universes are about to be taken…

Scientists are searching for a mirror universe. It could be sitting right in front of you. … :

She calls it an “oscillation” that would lead her to “mirror matter,” but the idea is fundamentally the same. In a series of experiments she plans to run at Oak Ridge this summer, Broussard will send a beam of subatomic particles down a 50-foot tunnel, past a powerful magnet and into an impenetrable wall. If the setup is just right — and if the universe cooperates — some of those particles will transform into mirror-image versions of themselves, allowing them to tunnel right through the wall. And if that happens, Broussard will have uncovered the first evidence of a mirror world right alongside our own.

Bringing big tech to heel: how do we take back control of the internet? | World news | The Guardian

So true, and I am happy that I was allowed to partially witness that in Brussels. Its the right way to go, and others will follow

The project will reference the world-leadingGlobal Data Protection Regulation developed by the European Union. Under the regulation, the idea that you control your data footprint has been accepted and embedded with privacy protocols placing enforceable rules on how corporations harvest and then monetise personal information. Protections include the right to be unknown and the right to be able to delete your personal records from a business that is holding them. It also includes rights for portability of data allowing, for instance, a user to take their data with them when they change banks, obligations on a business to delete a customer’s records when the customer takes their business elsewhere, as well as stringent data-handling protocols. Adopting these principles in Australia would be a significant step towards taking responsibility for the way the digital economy affects our privacy.”

https://www.theguardian.com/world/2019/jun/23/bringing-big-tech-to-heel-how-do-we-take-back-control-of-the-internet

Blockchain! Blockchain! Blockchain! Blockchain!

 5 Blockchain Breakthroughs Coming in the Next 5 Years … :

In the next five years, Pulier predicts five blockchain trends, each poised to disrupt major players and birth entirely new business models by 2024. Let’s dive in.:

  1. Non-fungible tokens (NFTs)
  2. Security tokens
  3. Tokenized assets
  4. Self-sovereign identity
  5. Free speech

And at the broader societal level, blockchains will catalyze a sweeping shift away from hierarchical structures towards democratized networks at larger scales than ever before experienced by humankind. A next-generation tool capable of maintaining trust in large populations, blockchain will define a brand new order.”

I love to read articles void of busswords. 🙂 And I am tense what will come true. 

Interesting Study on Self-Supervised Learing…

Ai is now learning with images of kittens, and I really like the cats, birds and moving images examples in these slides: 

self_supervision3.pptx

The ImageNet Challenge Story … Outcomes Strong supervision:

• Features from networks trained on ImageNet can be used for other visual tasks, e.g. detection, segmentation, action recognition, fine grained visual classification

• To some extent, any visual task can be solved now by:
1. Construct a large-scale dataset labelled for that task
2. Specify a training loss and neural network architecture
3. Train the network and deploy

Brain signals translated into speech | Bioscience Today

https://www.biosciencetoday.co.uk/brain-signals-translated-into-speech/

Speech is an amazing form of communication that has evolved over thousands of years to be very efficient,” said Edward F. Chang, M.D., professor of neurological surgery at the University of California, San Francisco (UCSF) and senior author of this study published in Nature. “Many of us take for granted how easy it is to speak, which is why losing that ability can be so devastating. It is our hope that this approach will be helpful to people whose muscles enabling audible speech are paralyzed.

Who is this Spectre? Zuckerberg reveals…

This Deepfake of Mark Zuckerberg Tests Facebook’s Fake Video Policies – VICE … :

“Imagine this for a second: One man, with total control of billions of people’s stolen data, all their secrets, their lives, their futures,” Zuckerberg’s likeness says, in the video. “I owe it all to Spectre. Spectre showed me that whoever controls the data, controls the future.”

… there’s more, including Kim Kardashian and Donald Trump…

Spoiler: This is Spectre: 

Weniger Licht am Abend macht den Schlaf besser – messbar am Melatonin

Melatonin-Produktion: Warum uns selbst Kerzenlicht den Schlaf rauben kann – Spektrum der Wissenschaft … :

Im Durchschnitt halbierte sich die Melatoninproduktion, wenn die Probanden in den vier Stunden nach Sonnenuntergang 25 Lux ausgesetzt waren, was schwacher abendlicher Zimmerbeleuchtung entspricht. Die Forscher untersuchten zwar nicht, ob die Probanden auch später einschliefen. Frühere Studien legen jedoch nahe, dass es hier – je nach Person – einen deutlichen Zusammenhang mit der Melatoninausschüttung gibt.