The problem appears to be some data that's not being shared.

room-temperature superconducting claim is retracted

/ Illustration of magnetic levitation using a high-temperature ceramic superconductor.

A paper that claimed to provide the first evidence of superconductivity at room temperatures has been retracted by the journal Nature, even as the paper’s authors say they still have confidence in the results. The decision appears to come down to an issue of the experiment’s questionable controls.

High-temperature superconductivity has made a lot of progress due to the use of hydrogen-rich chemicals at extreme pressures, which can force the hydrogen into chemical structures that would otherwise have empty space. Several papers have gotten hydrogen-rich chemicals to superconduct at temperatures that could be reached using dry ice.

The room-temperature report followed a similar path, using intense pressure to force hydrogen to combine with a new mix of chemicals and reach record temperatures—in this case, above the freezing point of water, a major milestone. The pressures involved mean the material wouldn’t be useful for real-world applications but could potentially point the way toward other chemicals that could.

But people in the field raised some questions about how the data obtained during this work was processed before being put in the paper—primarily related to how the background noise seen in the control samples was handled. Nature’s editors indicate the procedure used for data processing wasn’t included in the paper, which “undermines confidence” in the results.

The research team disagrees strongly, saying the raw, unprocessed data also supports their original conclusions. They feel the paper should not have been retracted.

Normally, this is something replication should be able to sort out. But a report by Science’s news team says that the original paper didn’t have enough details to make replication a simple matter. And the team behind the publication is suggesting that anyone who wants to replicate its work should visit their labs in order to perform the work—which is not how replication is expected to operate. So it could be a while before we know whether this high-temperature superconductor is for real.

TECH NEWS RELATED

City sprawl responsible for acceleration of deep landslide movement, finds study

Houses in Bukavu. Credit: Kimmyfari/Wikimedia Commons, CC BY-SA An international team of researchers has found that an acceleration in movement of a deep landslide beneath the city of Bukavu, in the Democratic Republic of the Congo, is due to city sprawl, not natural forces. In their study, published in ...

View more: City sprawl responsible for acceleration of deep landslide movement, finds study

New biomarkers for coffee consumption

Graphical abstract. Credit: Food Chemistry (2022). DOI: 10.1016/j.foodchem.2022.135026 In search of new biomarkers for nutrition and health studies, a research team from the Leibniz Institute for Food Systems Biology at the Technical University of Munich (LSB) has identified and structurally characterized three metabolites that could be considered as specific ...

View more: New biomarkers for coffee consumption

Why social design projects fail

The PlayPump was a simple device with an intrepid promise. The device was a merry-go-round connected to an underground pipe. As children played on it, the pipe would pump groundwater into a nearby storage tank where it could be accessed from a hand pump in the village. The promise: ...

View more: Why social design projects fail

Quality, not just quantity, matters in '30 by 30' goal

Magnitude of additional biodiversity conservation, climate-change mitigation, and nutrient-regulation benefits associated with protecting 30% of terrestrial areas in 193 countries globally, across nine scenarios. Insets indicate the total potential benefits within each region’s boundaries across a specific area, with values representing average and 95% confidence intervals (calculated on the ...

View more: Quality, not just quantity, matters in '30 by 30' goal

Mixing diesel and hydrogen provides big cuts in emissions

Existing engine designs can be modified to allow hydrogen injection.

View more: Mixing diesel and hydrogen provides big cuts in emissions

Meteorites plus gamma rays could have given Earth the building blocks for life

Credit: ACS Central Science (2022). DOI: 10.1021/acscentsci.2c00588 Even as detailed images of distant galaxies from the James Webb Space Telescope show us more of the greater universe, scientists still disagree about how life began here on Earth. One hypothesis is that meteorites delivered amino acids—life’s building blocks—to our planet. ...

View more: Meteorites plus gamma rays could have given Earth the building blocks for life

Three-in-one microscope allows researchers to target biomolecules

Photo of the 3-in-1 microscope that zooms in on the same spot of a biological sample using an electron beam (top, middle), ion beam (top, right) and light beam (bottom, middle). Credit: TU Delft Physicists from TU Delft have developed a three-in-one microscope in which a light beam, electron ...

View more: Three-in-one microscope allows researchers to target biomolecules

Microbiome composition found to influence depression

Beta-diversity is linked with ethnic differences in depressive symptom scores. A Beta-diversity predicting PHQ9 depression. It presents results of linear regression analyses that model β-diversity as a predictor of depressive symptom levels. Panel (A) horizontal bars present ΔR2 after progressive adjustments for confounders (models 1a to 3), and respectively without ...

View more: Microbiome composition found to influence depression

Wooden ship from 1800s uncovered on Florida beach after erosion caused by recent hurricanes

Biomembrane research findings could advance understanding of computing and human memory

Synthesis of material that absorbs electromagnetic waves in the 6G band

Fifty years later, remastered images reveal Apollo 17 in stunning clarity

New Genes Linked to Multiple Sclerosis Discovered

Anti-Tumor Effects Without Toxicities: Researchers Use a Spice To Treat Cancer

What psychedelics can’t explain - Big Think

Unexpected speed-dependent friction in graphene

“Global Jukebox” database uncovers secrets from the history of music

Salt Lake City’s efforts to fight pollution face a new challenge: Toxic dust

Three MIT seniors win 2024 Schwarzman Scholarships

Astronomers observe outburst of the young magnetar Swift J1818.0–1607

OTHER TECH NEWS

Top Car News Car News