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Business

Future-proof security system protects Bitcoin Lightning Network from quantum attacks

Nearly all personal information is stored electronically in our digital age. This sensitive data is protected by digital keys unique to each device that would take today's computers billions of years to crack through brute-force ...

Internet

How to prepare your online life for your death

What happens to all of your online accounts—credit cards, merchants, news subscriptions, social media, streaming services—after you die? How will your heirs know how to access these accounts or understand what you want done ...

Engineering

Infrared-transparent aerogel boosts performance of subambient daytime radiative cooling materials by up to 5.2°C

As global warming continues, people tend to switch on fans or air conditioners during hot weather. But the more we use electrical appliances, the more energy we consume and carbon dioxide we produce. With continuous breakthroughs ...

Engineering

Heated mirror reveals hidden 3D patterns in rising air near a wall

Heat transfer from a heated surface depends partly on the thin layer of air that warms and rises beside it. As this natural convection boundary layer develops, its flow can change from orderly patterns to turbulence, influencing ...

Technology news

Engineering

Mystery of 60-second fluctuations in power grids solved

TenneT Germany, the largest transmission system operator in Germany, has observed over several years that the frequency in the European power grid dips briefly every 60 seconds. While these deviations were not critical to ...

Internet

Thousands of deceptive ads evade Google's safeguards

Thousands of deceptive advertisements have slipped through Google's advertising safeguards, exposing internet users to fake virus warnings, misleading software promises and potentially dangerous downloads, according to new ...

Robotics

Soft exosuit makes it easier to stand up

Getting up from a chair is something most of us don't think about. The movement is almost second nature: Our legs and hips work together in a precise sequence. But performing this task can be difficult for older people, often ...

Electronics & Semiconductors

Electronic skin lets users 'see' touch instantly

Researchers from the National University of Singapore (NUS) have developed a next-generation electronic skin that can sense and directly visualize pressure in real time, addressing key limitations of current wearable sensing ...