science

Anton Petrov:
https://www.youtube.com/watch?v=wQh9ezBdoPM

Also cross-posted from: https://programming.dev/post/31467824

• A team of physicists at ETH Zurich has created a tiny metalens that can half the wavelength of incident light.

• They have achieved this using a special metal-oxide lens material called lithium niobate and through nanoscale pattern, stamped into the material.

• Such metalenses could be used as a security feature on banknotes or in the fabrication of ultra-thin elements for cameras.

• https://ethz.ch/en/news-and-events/eth-news/news/2025/06/ultra-thin-lenses-that-make-infrared-light-visible.html

The whole point of science is that the conclusions depend on the evidence, not what the politicians want. When you do it the other way around, you get nonsense like Lysenkoism which deny you the technical advantages of having an accurate understanding of the world.

For the past decade, scientists have been trying to get to the bottom of what seemed like a major inconsistency in the universe. The universe expands over time, but how fast it's expanding has seemed to differ depending on whether you looked early in the universe's history or the present day. If true, this would have presented a major problem to the gold-standard model that represents our best understanding of the universe.

But thanks to the new James Webb Space Telescope, scientists from the University of Chicago have been able to take new and better data—suggesting there may be no conflict after all.

Okay, so we know Eukaryote-synthesis happened multiple times, because both Mitochondria and chloroplasts were independent simple cells as one point.

So maybe in the early says of Eukaryote-synthesis when the earth was being poisoned by oxygen and snowball earth was happening the selective pressures caused dozens of Eukaryote like cells to evolve, and for even a tiny span of time maybe 30,000 years or less or even 100,000 years privative tiny multicellular formed with endless forms and systems that would have looked like dozens of alien linages unrecognizable, and that by the time of the macro life explosion of the Cambrian only our linage survived.

Untraceable but the most biodiversity in the planets history which is why the current domain with Plants Animals and Fungi are so successful at avoiding total annellation.

cross-posted from: https://gregtech.eu/post/13229638

Not only is Trump leveling science funding at NASA, like he did with the National Science Foundation, but look closely at the budget. Beginning next year at 800 million and by 2030, 3.5 billion (nearly 20% of its budget), NASA is required to work towards “Commercial Moon and Mars Infrastructure and Transportation”. The ultimate subsidy for the commercial space sector.

They also eliminated STEM engagement program, which provided funding for the next generation of scientists to participate in NASA opportunities. I can’t wait for all this greatness Trump has been preaching to arrive.

Found a study back in 2012 that went over human activity at different concentrations. Just wanted to know what the current research is on the subject. Back when the sudy was performed they observed Although typical outdoor CO2 concentrations are approximately 380 ppm which is lower than what we see nowadays (climate change and all that).

Synthesis and interpretation of findings. Performance for six of nine decision-making measures decreased moderately but significantly at 1,000 ppm relative to the baseline of 600 ppm, and seven decreased substantially at 2,500 ppm. For an eighth scale, “information search,” no significant differences were seen across conditions. In contrast to other scales, an inverse pattern was seen for “focused activity,” with the highest level of focus obtained at 2,500 ppm and the lowest at 600 ppm.  
Thus, most decision-making variables showed a decline with higher concentrations of CO2, but measures of focused activity improved. Focused activity is important for overall productivity, but high levels of focus under nonemergency conditions may indicate “overconcentration.” Prior research with the SMS has shown repeatedly that individuals who experience difficulty in functioning [e.g., persons with mild-to-moderate head injuries (Satish et al. 2008), persons under the influence of alcohol (Streufert et al. 1993), and persons suffering from allergic rhinitis (Satish et al. 2004)] tend to become highly focused on smaller details at the expense of the big picture.  

I would like to know the potential effects higher concentrations of CO2 will have on a growing human population of the future 20-50-100 years from now? Hope that makes sense.

‘Extinction-level cuts’ to space agency’s spending means labs will close and deep-space missions will be abandoned

Some of the greatest mysteries of the universe, such as the possibility of life on Mars or Venus, may never be solved because of Donald Trump’s proposed “extinction-level” cuts to Nasa spending, scientists are warning.

The Trump administration revealed last month its plan to slash the space agency’s overall budget by 24% to $18.8bn, the lowest figure since 2015. Space and Earth science missions would bear the brunt of the cutbacks, losing more than 53% of what was allocated to them in 2024.

If the budget is approved by Congress, opponents say, longstanding Nasa labs will close, deep-space missions, including many already under way, will be abandoned, and a new generation of exploration and discovery will never reach the launchpad.

This sort of time flip has been described as looking into a mirror and spotting your back instead of your face...By carefully adjusting electronic components on a strip of metal, they introduced a sudden jump that reversed the direction of incoming signals...The outcome was a time-reversed copy of the original wave, appearing just as predicted but never before seen with clarity...A wave that can jump to a new frequency and then rewind might open new possibilities for data transmission at different ranges of the spectrum. It could also reshape how certain sensors and imaging systems are designed.

https://scholar.google.com/citations?user=lawJ6xIAAAAJ&hl=en