GoKawiil
Tech News
Americans set clocks back an hour overnight as daylight saving time ended, continuing the twice-yearly shift even though President Trump has publicly called for abolishing the practice. No federal legislation has changed the current system, so the fall-back and spring-forward schedule remains in effect nationwide.
Time-Nuts is a mailing list hosted at lists.febo.com for amateurs focused on precise time and frequency measurement, covering quartz oscillator stability, rubidium and cesium atomic clocks, and signals like WWVB, Loran-C and GPS. The list has about 1,800 members, mostly hams and electronics hobbyists, who also discuss repairing surplus timing instruments and homebrew hardware/software projects. An archive of posts from 2004 onward is available at febo.com/pipermail.
A research commentary in Nature argues that conservation planning should incorporate the daily and seasonal activity patterns of animals, rather than treating species protection as a static, time-independent exercise. The piece suggests that when animals are active—day, night, or seasonally—affects their vulnerability to threats and their interactions with habitat and human activity.
The International Bureau of Weights and Measures announced it will stop issuing leap seconds to Coordinated Universal Time starting in May 2027, ending a practice used since 1972 to reconcile atomic clock time with Earth's slowing rotation. Since 1972, 32 leap seconds have been added, with the last one inserted in 2016.
Member states of the General Conference on Weights and Measures voted on 15 October to end the practice of adding leap seconds to Universal Coordinated Time, a change originally scheduled for 2035. In its place, timekeepers will allow a full hour of drift to accumulate between atomic time and Earth's rotation-based time before making a single correction, a threshold not expected to be reached for thousands of years.
Jaeger-LeCoultre's archives show its Ados and Indos travel clocks appeared in the same 1931 catalogue as the Reverso watch and were created simultaneously. Both share design traits including rectangular railroad-track dials, art-deco indices and protective mechanisms, though the clocks use a foldable case rather than the Reverso's swivelling one. The clocks also featured lume-filled cathedral hands and numerals, plus varied dial colours such as salmon, linen, black and silver.
Physicists have demonstrated initial operation of nuclear clocks based on a thorium-229 isotope transition, moving the concept from theory toward a working timekeeping device. These prototypes use a nuclear transition rather than the electron transitions employed by today's atomic clocks.
A publisher correction has been issued for the study 'Sleep chart of biological ageing clocks in middle and late life.' The correction notice itself does not detail the specific errors being fixed, only confirming that a correction to the original publication has been made.
Two research groups, led by Toscani De Col and by Huang, have published the first demonstrations of a working nuclear clock in Nature. Unlike atomic clocks, which track electron transitions, these devices measure energy transitions within atomic nuclei, offering a potentially more precise timekeeping method. The Toscani De Col team also showed their clock could be used to search for a candidate form of dark matter.
Novo Nordisk tested blood from over 10,000 trial participants using proteomic clocks and found signs that its weight-loss drug slowed biological aging, including up to a 4-year shift in a clock measuring heart protein age. Eli Lilly ran a smaller study on tirzepatide using epigenetic clocks that track DNA changes, and also found molecular aging appeared to slow in patients taking the drug compared to placebo.
Neuroscientist Christin Glorioso, founder of NeuroAge Therapeutics, has created a competition called Younger that pits participants against each other based on measurements of biological age. Entrants will submit samples to services such as TruDiagnostic, which uses epigenetic markers to estimate overall biological age, pace of aging, and the ages of 11 individual organ systems. Glorioso says the contest aims to educate the public about aging clocks and to build what she calls the world's most comprehensive dataset on them.
Researchers led by Jesse Poganik at Brigham and Women's Hospital transplanted young hearts into middle-aged mice and middle-aged hearts into young mice, implanting the extra organ in the neck to compare it with the original. Using three molecular 'aging clocks' to measure biological age, the team found that transplanted hearts largely took on the biological age profile of the recipient rather than retaining the age of the donor, a pattern also suggested by records from human heart transplant recipients.