The year 536 AD is remembered as the darkest year in human history

 

The year 536 AD is remembered as the darkest year in human history — and not just figuratively. For nearly 18 months, the Sun dimmed across much of the world, shrouding the planet in a cold, gray twilight. Temperatures plunged, crops withered, and famine spread, leaving civilizations struggling to survive.

Modern scientists have traced this global catastrophe to a massive volcanic eruption, likely in Iceland, that spewed ash and aerosols high into the atmosphere. The resulting “volcanic winter” blocked sunlight and disrupted weather patterns across the globe. Evidence of the event still lingers in tree rings and ice cores, silent witnesses to a time when the Earth’s light was stolen by fire and ash.

The eruption triggered a cascade of disasters, including widespread crop failure and the onset of the Plague of Justinian, which killed millions. It stands as a haunting reminder of how a single moment in nature’s fury can reshape the course of human history.

#History #Volcano #ClimateChange #AncientWorld #fblifestyle

University of Augsburg has built a room-temperature quantum battery that charges in microseconds and holds energy indefinitely without degrading.

 

Germany may have just cracked the future of power. A team of physicists at the University of Augsburg has built a room-temperature quantum battery that charges in microseconds and holds energy indefinitely without degrading. Unlike traditional batteries that rely on chemical reactions, this device uses entangled quantum states, making “forever-charged” electronics a real possibility.

In early tests, a prototype the size of a grain of rice powered a micro-robot for six hours after just 0.01 seconds of charging. Scientists believe this breakthrough could transform everything from smart devices and medical implants to satellites and city-scale power storage. If scaled, quantum batteries could eliminate charging cycles entirely, redefining what energy storage means for the modern world.

#QuantumBattery #EnergyRevolution #FutureTech #GermanyInnovation #CleanEnergy

Ngôi sao nhanh nhất vũ trụ S62 với tốc độ 24.000km/giây (8% tốc độ ánh sáng)làm cong cả thời gian ngay tại trung tâm Ngân Hà!

 

Tốc Độ S62 - Ngôi sao nhanh nhất vũ trụ làm cong cả thời gian ngay tại trung tâm Ngân Hà!

Bạn có hình dung được một vật thể di chuyển nhanh đến mức thời gian xung quanh nó phải chậm lại? Không phải là khoa học viễn tưởng, mà là thực tế đang diễn ra hàng ngày tại trung tâm Dải Ngân Hà của chúng ta.

Các nhà thiên văn học vừa làm cả giới khoa học kinh ngạc khi phát hiện một ngôi sao đặc biệt mang tên S62. Ngôi sao nhỏ bé này đang ẩn mình sâu trong trung tâm Dải Ngân Hà, nhưng tốc độ của nó thì không hề nhỏ chút nào.

S62 di chuyển quanh hố đen siêu nặng Sagittarius A* (Sgr A*) với vận tốc lên tới hơn 24.000 km/giây, tương đương gần 8% tốc độ ánh sáng!

Nó hoàn thành một vòng quỹ đạo quanh Sgr A* chỉ trong 10 năm, một khoảng thời gian cực ngắn so với các ngôi sao khác, giúp nó phá vỡ mọi kỷ lục tốc độ đã biết trong vũ trụ.

Với tốc độ khủng khiếp đó, S62 trở thành "nhà du hành thời gian" của riêng mình. Hiện tượng giãn nở thời gian tương đối tính đã được quan sát trực tiếp

Với ngôi sao S62, thời gian trôi chậm hơn so với chúng ta trên Trái Đất. Cụ thể, 1 giờ trôi qua với S62 sẽ tương đương với gần 100 phút (hơn 1 tiếng rưỡi) trôi qua tại Trái Đất!

S62 không chỉ là một kỷ lục gia tốc độ. Nó còn là bằng chứng sống, trực tiếp xác nhận một trong những tiên đoán quan trọng nhất của Thuyết Tương đối rộng của Albert Einstein

Quỹ đạo của S62 không hề ổn định theo hình elip thông thường; nó liên tục bị xoay lệch (tiền tuế) khi chịu ảnh hưởng bởi lực hấp dẫn cực lớn từ hố đen Sgr A*.

Sự kết hợp giữa tốc độ cực nhanh, quỹ đạo bị bẻ cong, và hiện tượng thời gian giãn nở làm cho S62 trở thành phòng thí nghiệm vũ trụ hoàn hảo. Nó cung cấp cho các nhà khoa học cơ hội hiếm có để quan sát trực tiếp và đo đạc cách thời gian bị bẻ cong và không gian bị biến dạng khi đến gần một vật thể có trọng lực cực mạnh như hố đen siêu nặng.

Nguồn: Florian Peißker et al., “S62 on a 9.9 yr Orbit around SgrA”, The Astrophysical Journal

Khoa học & ứng dụng 

Australia is constructing the world’s longest undersea cable, stretching over 4,200 kilometers, to deliver renewable solar energy to Singapore.

 

Australia has embarked on a record-breaking project: constructing the world’s longest undersea cable, stretching over 4,200 kilometers, to deliver renewable solar energy to Singapore. Known as the Australia-Asia PowerLink, this project will connect massive solar farms in Australia’s Northern Territory with Southeast Asia.

The project will generate up to 20 gigawatts (GW) of solar power, supported by one of the world’s largest battery storage systems. The undersea cable will then transmit up to 3.2 GW of clean electricity directly to Singapore, covering about 15% of its total energy needs.

This innovation highlights how energy trade is shifting from fossil fuels to renewables. Instead of exporting coal or gas, Australia will export sunlight converted into power, helping Singapore cut emissions and secure long-term energy security.

The project also sets a global precedent for cross-border renewable energy cooperation, showing how countries can share resources to accelerate the transition to a carbon-neutral future.

#UnboxEngineering #SolarPower #AustraliaInnovation #CleanEnergy #FutureOfPower

Chinese scientists have developed a groundbreaking “water battery”

 

Chinese scientists have developed a groundbreaking “water battery” that can store far more energy than traditional lithium-ion cells. Created by researchers at the Chinese Academy of Sciences, this new battery uses water as its electrolyte, making it much safer and non-flammable compared to lithium batteries, which rely on volatile organic solvents.

The team achieved an energy density of about 1,200 Wh per litre — nearly double that of current lithium-ion batteries. This leap in performance is made possible by a special halogen-based chemical system that allows multiple electron transfers, dramatically increasing how much energy the battery can hold.

Beyond its higher capacity, the water battery is also environmentally friendly and less likely to overheat or explode, making it ideal for use in electric vehicles, renewable energy storage, and large-scale power grids. While more testing is needed before commercialization, this innovation marks a major step toward safer, more powerful, and sustainable energy storage.

Japanese natural beekeeping

Chinese scientists have developed a groundbreaking “water battery” that can store far more energy than traditional lithium-ion cells.

 

Chinese scientists have developed a groundbreaking “water battery” that can store far more energy than traditional lithium-ion cells. Created by researchers at the Chinese Academy of Sciences, this new battery uses water as its electrolyte, making it much safer and non-flammable compared to lithium batteries, which rely on volatile organic solvents.

The team achieved an energy density of about 1,200 Wh per litre — nearly double that of current lithium-ion batteries. This leap in performance is made possible by a special halogen-based chemical system that allows multiple electron transfers, dramatically increasing how much energy the battery can hold.

Beyond its higher capacity, the water battery is also environmentally friendly and less likely to overheat or explode, making it ideal for use in electric vehicles, renewable energy storage, and large-scale power grids. While more testing is needed before commercialization, this innovation marks a major step toward safer, more powerful, and sustainable energy storage.

The world’s largest Lithium deposit (43-million-ton) beneath Saxony, Germany

 

The world’s largest Lithium deposit (43-million-ton) beneath Saxony, Germany

UK-based Neptune Energy discovered a 43-million-ton lithium deposit beneath Saxony, Germany, in an area previously used for gas excavation.

The find, one of the world’s largest, could be worth over $1 trillion and power 800,000 electric vehicles, similar to Nevada’s McDermitt Caldera deposit.

The discovery enables Germany to end reliance on Chinese battery supplier CATL, which currently powers Mercedes, BMW Group, and Volkswagen Group EVs.

Neptune Energy CEO Andreas Scheck stated the deposit will “contribute significantly to the German and European supply market for the critical raw material lithium,” reshaping Europe’s EV battery future.

#fblifestyle