科技 訊息

The recent attacks on walkie-talkies and pagers in Lebanon have highlighted the hidden vulnerabilities in everyday technology. These incidents underscore the need for individuals to understand the potential risks associated with their devices and to take proactive steps to protect themselves in an increasingly digital world where safety can be compromised.

Gallium nitride-based semiconductors have been a boon for high-frequency and power electronics. They've also revolutionized energy-efficient LED lighting. But no semiconductor wafer has been able to do both at the same time efficiently.

Thanks to recent advances in artificial intelligence (AI), civil engineers can inspect large-scale infrastructure more efficiently and cost-effectively, while also monitoring the progression of damage severity over time.

One of the greatest challenges in the fight against climate change is energy storage. Fossil fuel essentially stores itself, with its energy locked inside its own chemical bonds. But how do you store more sustainable, but otherwise ephemeral, forms of energy, like the power of the wind and sun?

Ever found yourself unable to resist checking out a social media notification? Or sending a random picture just to keep a Snapchat "streak" going? Or simply getting stuck staring at YouTube because it auto-played yet another cute cat video?

Cryptocurrencies have been condemned over their environmental record at a time when traditional investments have been rapidly moving towards greener environmental, social and governance (ESG) values. So how long will it be until crypto earns its green credentials?

As computing technology advances, we have shifted from using large, single-chip processors to systems made up of smaller, specialized chips called "chiplets." These chiplets work together to boost processing power and efficiency.

Meta unveiled updates to the company's virtual reality headset and Ray Ban smart glasses on Wednesday along with AI advances as it tries demonstrate its artificial intelligence prowess and the next generation of computing platforms beyond smartphones and computers.

When Valery Levitas left Europe in 1999, he packed up a rotational diamond anvil cell and brought it to the United States. He and the researchers in his group are still using a much-advanced version of that pressing, twisting tool to squeeze and shear materials between two diamonds to see in situ, within the actual experiment, what happens and verify the researchers' own theoretical predictions.

Meta launched AI chatbots voiced by Hollywood celebrities like John Cena and Judi Dench on Wednesday, betting that its billions of users are eager to embrace artificial intelligence.

Social media platform X on Wednesday published its first transparency report since the company was purchased by Elon Musk. The report, which details content moderation practices, shows the company has removed millions of posts and accounts from the site in the first half of the year.

Utility companies in the United States could double electric transmission capacity by 2035 by replacing existing transmission lines with those made from advanced materials, according to a new study published today in the Proceedings of the National Academy of Sciences.

Thermoelectric generators that can convert waste heat to clean energy could soon be as efficient as other renewable energy sources, like solar, according to a team led by Penn State scientists.

A major advancement in structural adhesives for the automotive industry has been developed by researchers at Nagoya University. This next-generation adhesive promises to revolutionize material bonding by offering unprecedented impact strength—22 times higher than traditional epoxy-based adhesives that do not incorporate any rubbery additives.

Finding a needle in a haystack is the quintessentially impossible task. But what if new tools could make it straightforwardly achievable? Imagine if, instead of searching through everything by hand, you could portion out small piles of hay and use magnets.

While Honda has a long reputation for building fuel-efficient cars and trucks, it's only now getting serious about EVs with its new 2024 Prologue. The Prologue is an all-electric SUV that seats five and is about the same length as a Honda Passport. Interestingly, Honda expedited its entry in the electric SUV arena by borrowing off-the-shelf EV know-how from General Motors. The Prologue shares its battery, motors and many of its features with the Chevrolet Blazer EV.

Google announced Wednesday it had filed a complaint at the European Commission against Microsoft, accusing its rival of "anticompetitive" licensing practices to force customers to use its cloud service.

The hype surrounding machine learning, a form of artificial intelligence, can make it seem like it is only a matter of time before such techniques are used to solve all scientific problems. While impressive claims are often made, those claims do not always hold up under scrutiny. Machine learning may be useful for solving some problems but falls short for others.

The lifeblood of any battery is the electrolyte. It is the medium through which positively charged elements (cations) migrate en masse between the positive and negative electrodes. By this means, batteries discharge to provide energy and charge to store energy. Scientists call this an electrochemical process.

Robots are widely used in the automotive industry and have started entering new application domains such as logistics in the last few years. However, current robots still face many limitations. They typically perform a single action or a fixed sequence of actions, repeating them the same way each time.