VnExpress International
The most read Vietnamese newspaper
Vietnamese Edition
| Contact us | Follow us on       
Tech
Tech news Enterprises Personalities Vietnam innovation

Challenge hub

Quiz: What construction method kept Qin Shi Huang’s ancient road grass-free for over 2,200 years?

Quiz: What construction method kept Qin Shi Huang’s ancient road grass-free for over 2,200 years?

Built in 212 BC on the orders of China’s first emperor Qin Shi Huang, the Qin Straight Road spans roughly 700 kilometers and has remained largely free of grass growth for more than 2,200 years.
Which university is named the world’s best for robotic science and engineering?

Which university is named the world’s best for robotic science and engineering?

Which Asian university ranks second globally for computer science and engineering?

Which Asian university ranks second globally for computer science and engineering?

Which country has the second largest rare earth reserves in Southeast Asia?

Which country has the second largest rare earth reserves in Southeast Asia?

This country has around 4,500 tons of rare earth reserves, ranking 12th globally.
December 25, 2025 | 07:45 pm PT
Which Asian country hosts two universities in the global top 10 for data science and AI?

Which Asian country hosts two universities in the global top 10 for data science and AI?

The country is home to two universities ranked fifth and seventh worldwide for data science and artificial intelligence in the 2025 QS World University Rankings.
December 23, 2025 | 08:10 pm PT
Which country does the world’s biggest lottery winner come from?

Which country does the world’s biggest lottery winner come from?

The world’s largest lottery jackpot, worth more than US$2 billion, was claimed three years ago. Do you know the country the winner hailed from?
December 20, 2025 | 09:48 pm PT
Can you name the only Asian university in global top 5 for computer science and information systems?

Can you name the only Asian university in global top 5 for computer science and information systems?

The institution places fourth in the QS World University Rankings 2025 for computer science and information systems, standing alongside leading universities from the U.S. and the U.K.
December 16, 2025 | 08:10 pm PT
7 tips to maximize your EV’s range and performance in winter

7 tips to maximize your EV’s range and performance in winter

Cold temperatures can sharply reduce an electric vehicle’s range, but several steps, including preheating the cabin and parking indoors, help maintain battery efficiency and performance in winter.
December 16, 2025 | 03:17 pm PT
Which Southeast Asian university is named the world’s second best for AI?

Which Southeast Asian university is named the world’s second best for AI?

It placed second globally in the U.S. News & World Report’s 2025–2026 Best Global Universities for Artificial Intelligence rankings, which assess about 2,250 top institutions based on measures of academic excellence.
December 14, 2025 | 07:21 pm PT
Quiz: Who is ‘MIT math nerd’ crowned the world’s youngest self-made woman billionaire?

Quiz: Who is ‘MIT math nerd’ crowned the world’s youngest self-made woman billionaire?

The 29-year-old Brazilian entrepreneur, often dubbed an “MIT math nerd,” has risen to become the world’s youngest self-made female billionaire, with a net worth of US$1.3 billion from her stake in the online prediction market.
December 12, 2025 | 01:08 am PT
Which place on Earth sends water to three oceans?

Which place on Earth sends water to three oceans?

Triple Divide Peak in the U.S's Glacier National Park is the world’s only point where water from a single summit can flow into the Pacific, Atlantic, and Arctic oceans.
December 11, 2025 | 06:22 pm PT
Which Asian university is recognized as the world’s second-best for computer science?

Which Asian university is recognized as the world’s second-best for computer science?

It is ranked second globally in the 2025–2026 U.S. News & World Report Best Global Universities for computer science, a list that evaluates 2,250 leading institutions.
December 9, 2025 | 03:00 pm PT
Comfort or danger? Experts reveal hidden risks of falling asleep with headphones

Comfort or danger? Experts reveal hidden risks of falling asleep with headphones

Listening to music or podcasts with headphones before sleep may seem harmless, but experts warn of serious risks, including hearing loss, ear infections, and an increased risk of dementia over time.
December 8, 2025 | 09:25 pm PT
Which Asian university is ranked world's best for AI?

Which Asian university is ranked world's best for AI?

It ranks first in the 2025–2026 U.S. News & World Report AI university rankings, ahead of more than 2,250 top schools worldwide.
December 7, 2025 | 09:03 pm PT
Is it okay to put shoes in the washing machine? Expert advice on doing it safely

Is it okay to put shoes in the washing machine? Expert advice on doing it safely

Many people say machine-washing shoes leaves them spotless, but I’m worried it might ruin them or require special settings, reader Phuong Dung wrote to VnExpress.
December 2, 2025 | 07:28 pm PT
Which electronic device made one lowercase letter an icon of modern life?

Which electronic device made one lowercase letter an icon of modern life?

A single lowercase letter has become one of the most recognizable symbols in technology, redefining how people connect, create, and see themselves in the digital age.
December 3, 2025 | 01:16 am PT
Hanoi’s gasoline motorbike ban: ‘major surgery’ for transport system to give residents cleaner air

Hanoi’s gasoline motorbike ban: ‘major surgery’ for transport system to give residents cleaner air

I do not like the inconvenience of giving up my gasoline motorbike, but if we do not act now, our descendants will pay a high price later.
November 30, 2025 | 08:35 pm PT
Quiz: Which country has the highest number of traffic cameras?

Quiz: Which country has the highest number of traffic cameras?

The country has a total of 15,380 traffic enforcement cameras, nearly 5,000 more than the country in second place, according to a study by DiscoverCars.com.
November 30, 2025 | 08:13 pm PT
Ride-hailing driver earns $0.3 for 2-km trip, spends 30 minutes waiting for riders

Ride-hailing driver earns $0.3 for 2-km trip, spends 30 minutes waiting for riders

A 2-km ride earns a Vietnamese ride-hailing driver less than VND9,000 (US$0.34), but each trip can take nearly half an hour as many customers ask him to wait “five to seven minutes.”
November 26, 2025 | 08:16 pm PT
The Bitcoin bet that wiped out our $60,000 and nearly broke my marriage

The Bitcoin bet that wiped out our $60,000 and nearly broke my marriage

My wife and I invested US$60,000 of our savings into cryptocurrencies, driven by my promise of life-changing wealth, but after a year, I am left with nothing but loss and regret.
November 26, 2025 | 12:00 am PT
View more stories
 
go to top