ScienceNews

The NIST-F4 atomic clock, developed by the National Institute of Standards and Technology (NIST), is one of the most accurate timekeeping devices ever made. If it had started running during the age of dinosaurs, it would still be accurate to within just one second today.

The clock works by tracking the natural vibrations of cesium atoms. These atoms are cooled and tossed upward in a fountain-like motion. As they rise, they pass through microwave radiation, which causes them to "tick." The clock counts 9,192,631,770 of these atomic ticks every second to measure time with extreme precision.

NIST-F4 helps keep the official U.S. time and plays a crucial role in systems like GPS, global communications, and financial transactions-ensuring they stay perfectly in sync. It's currently under review to be officially certified as one of the most accurate clocks in the world.

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The NIST-F4 Atomic Clock: A New Benchmark in Precision Timekeeping

Developed by the National Institute of Standards and Technology (NIST), the NIST-F4 atomic clock ranks among the most precise timekeeping instruments ever built. Remarkably, if it had been running since the time of the dinosaurs, it would still be accurate to within just one second today.

This extraordinary accuracy comes from tracking the vibrations of cesium atoms. Cooled and launched upward in a fountain-like arc, the atoms pass through microwave radiation that makes them “tick.” The clock counts exactly 9,192,631,770 of these atomic ticks per second to maintain flawless time.

NIST-F4 plays a vital role in keeping official U.S. time and is essential to technologies like GPS, global communications, and financial networks—ensuring seamless synchronization across the globe. It is currently undergoing review for certification as one of the most accurate clocks ever made.

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Scientists have created an innovative skin-like hydrogel capable of accelerating wound healing at an exceptional rate.

This advanced material is designed to repair 90% of a wound within just four hours and achieve complete healing within a day.

By mimicking the properties of human skin, the hydrogel offers flexibility, durability, and rapid self-repair. Experts believe this breakthrough could revolutionize wound care by significantly reducing healing times and minimizing infection risks.

It holds great potential for treating burns, surgical wounds, and other injuries. This cutting-edge development could enhance medical treatments, providing a faster and more efficient approach to skin regeneration and recovery.

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A groundbreaking study suggests that Earth may hold an untapped energy source—trillions of tons of hydrogen gas buried deep beneath the surface.

This geologic hydrogen, formed naturally through geochemical processes, could potentially power the world for centuries. According to research led by Geoffrey Ellis of the U.S. Geological Survey, these reserves amount to around 6.2 trillion tons (5.6 trillion metric tons), offering a low-carbon alternative to fossil fuels.

While deposits have already been found in places like Albania and Mali, scientists believe similar reserves exist worldwide. However, large-scale extraction remains a challenge, as much of this hydrogen is buried too deep or located offshore.

Despite these obstacles, the study, published in Science Advances, estimates that tapping into just 2% of the reserves could meet global hydrogen needs for 200 years, significantly supporting net-zero carbon goals.

The energy potential of these reserves surpasses that of all proven natural gas deposits, highlighting hydrogen as a promising clean fuel. Experts caution that developing the necessary infrastructure would require a massive global effort, but continued research into geologic hydrogen could be key to the future of sustainable energy.

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Scientists have created ultra-thin metal sheets just a few atoms thick using a new large-scale production method. These 2D sheets, made from bismuth, gallium, indium, tin, and lead, are hundreds of thousands of times thinner than a human hair.

Developed by researchers at the Chinese Academy of Physics, these sheets have extremely high electrical conductivity due to quantum confinement, which changes their properties at the atomic level.

Unlike older, complex methods, scientists used a simple hydraulic press to create air-stable 2D crystals over 100 micrometers wide. This breakthrough could transform electronics, leading to energy-efficient transistors, advanced chips, and ultra-sensitive detectors.

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Dire Wolf Returns After 10,000 Years?!
Has science really brought an extinct predator back to life?

US-based biotech company Colossal Biosciences claims it has revived the long-extinct dire wolf species.
In November 2024, two pups named Romulus and Remus were reportedly born — part of a groundbreaking de-extinction project.

But there's a twist:
Experts argue these are not true dire wolves, but genetically engineered versions of grey wolves.

Is this a breakthrough in de-extinction science or just clever genetic mimicry?
Can extinct species truly return?

Share your thoughts below!

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