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Explainers: Science

The waterspout formed in the sea off Hung Hom and dissipated shortly after hitting a wall. Photo: Government Flying Service

Explainer | All you need to know about waterspouts after rare sighting in Hong Kong harbour

A waterspout was seen in Hong Kong’s Victoria Harbour for the first time since records began in 1959, so what caused the phenomenon?

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Explainer | Who is Hong Kong scientist Dennis Lo and what is he best known for?

Explainer | What is green hydrogen and what is China’s role in its production and use?

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The science behind the Fukushima water release

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Explainer | What are superconductors and why the scepticism about breakthroughs?

Many claims about discovering room-temperature superconductors have fallen flat but the hope of finding revolutionary material pushes research forward.

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Explainer | The Post takes a closer look at tremor reports in Hong Kong amid string of quakes

Tremors from magnitude 3.7 earthquake on Monday mark third time in three months city has experienced such seismic activity.

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Explainer | How worried should you be about Covid subvariant Arcturus reported in Hong Kong?

Omicron subvariant XBB.1.16 has caused a spike in infections in India, causing mask mandate to be reintroduced.

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Seven cases of a new Covid-19 subvariant have been reported in Hong Kong. Picture: Edmond So

Explainer | How artificial skin is made and its uses, from treating burns to skin cancer

What is artificial skin? Experts reveal its uses beyond treating burn victims, including in research and drug development, and its potential to fight skin cancer.

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Should we worry about space debris from Chinese rockets hitting Earth?

The recent launch of the Long March 5 rocket prompts concern about whether it will hit a city when coming back to Earth.

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Explainer | What does 1 degree on the thermostat mean for climate change?

CLP Power and Hong Kong Electric have a range of incentives that encourage customers to use less energy during peak periods, under their mandates to help the city cut emissions and save electricity.

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Air-conditioners installed at a public housing estate in Tsuen Wan on 17 April 2018. Photo: Sam Tsang

Explainer | How Hong Kong’s new Covid case reporting criteria affects you

False test results from RAT kits force a change in policy.

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False positives from RAT kits have forced a change in policy. Photo: Felix Wong

China’s confidence rests on building on basic research, scientists say

Astrophysicist asks whether Chinese people can really be confident if their textbooks are based on work from the West.

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Explainer | Post Covid syndrome affects millions. There’s little known about its cause

Symptoms can emerge months after the initial coronavirus infection is gone.

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Explainer | Do I still need the vaccine or a booster if I’ve already had Covid-19?

Infection can induce antibodies and cause so-called natural immunity but questions remain about how much protection it offers and for how long.

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Scientists advise taking any approved and accessible vaccine - whether a person has been infected with coronavirus previously or not. Vaccination and a booster will better prevent further infection, according to studies from around the world.

Explainer | Should Hong Kong start rolling out fourth doses of Covid-19 vaccine en masse?

Several experts say there is no pressing need to begin offering fourth doses, as three offer adequate protection, but others say a fourth shot can better protect vulnerable seniors.

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Some experts say a fourth shot can better protect vulnerable seniors. Photo: Jonathan Wong

Elon Musk’s SpaceX to help Tonga fix internet

The SpaceX team is in Fiji to establish a ground station for six months; Tonga’s devastating volcanic eruption in mid-January damaged an undersea telecommunications cable.

New ‘highly virulent’ HIV strain discovered

The findings are not ‘normal’, scientists said; while assuring us there is ‘no cause for alarm’; the variant, largely detected in the Netherlands, has over 500 mutations.

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Explainer | Is there an end in sight? All you need to know about Hong Kong’s fifth wave

Four clusters threaten to overwhelm city’s pandemic strategy, with residents returning to living under strict social-distancing measures.

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Health workers in protective gear at Kwai Chung Estate, the centre of a superspreading event. Photo: Felix Wong

Explainer | What’s known about ‘stealth’ version of Omicron?

Scientists and health officials around the world are keeping their eyes on a descendant of the Omicron variant that has been found in at least 40 countries.

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Why are pandas so ‘chonky’ despite their vegan diet?

A new study found that pandas remain chubby despite their “poor-quality diet” because of the relationship between gut bacteria and the metabolism.

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Explainer | What is it like to stay at one of China’s massive quarantine centres?

Authorities in four southern Chinese cities have built health stations catering to thousands of travellers at any one time.

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One of the rooms in Zhuhai’s quarantine centre. Photo: Ken Lau

Explainer | How scary is ‘flurona’ – a Covid-19 and flu double blow – as Omicron spreads?

The winter flu season and more contagious variants of Covid-19 mean more co-infections are just a matter of time, experts say.

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Health workers administer Covid-19 tests outside a building placed under lockdown in Hong Kong. Photo: Bloomberg

Explainer | What is quantum computing and how does it work?

As the China-US tech war heats up, the advantages of taking the lead in a quantum race extend to defence, logistics, modelling and cybersecurity.

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From ISS rival to sea rocket launcher: 4 Chinese space targets for 2022

China has big ambitions relating to the moon and Mars projects for 2022 and it has six launches planned to expand the Tiangong space station.

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China science 2021: from hypersonic flight to glass from nuclear waste

The biggest talking points range from the country’s first space station taking shape in orbit to evidence of a previously lost civilisation coming to light

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The Zhu Rong Mars Rover, pictured next to the landing platform, on the surface of the red planet. Photo: EPA-EFE

Explainer | Which Covid-19 tests does China recognise, and are anal swabs necessary?

If you’re planning travel to China, learn the difference between RT-PCR and antigen testing, IgM versus IgG and how many tests to expect before and after your flight.

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Travellers to China who previously tested positive for Covid-19, or have antibodies not deemed to be from vaccinations, must show two negative RT-PCR test results taken more than 24 hours apart, as well as a lung CT or X-ray report taken before the second test. Photo: Bloomberg

Explainer | How diabetes shapes one woman’s life, and warning signs to look for

Doctors explain the differences between Type 1 and Type 2 diabetes and how they are triggered, and a sufferer describes the frightening onset of the disease and how she copes with it.

Explainer | Handy guide to key facts and terms at COP26 Glasgow

Here are some of the key issues that will be discussed at the UN climate summit in Scotland, which started Sunday and is scheduled to run to November 13.

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Explainers: Science
The latest news, analysis and opinion on Explainers: Science. In-depth analysis, industry insights and expert opinion.
last updated:
9 September, 2024
LATEST CHINA SCIENCE NEWS

Chinese archaeologists uncover a tomb ‘fit for a king’ in Neolithic burial site

The excavation site of the M27 tomb at Wangzhuang village in Henan province, central China. Photo: Xinhua

China unveils road map to become world leader in space science by 2050

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Chinese astronauts (from left) Li Guangsu, Li Cong and Ye Guangfu wave before their journey to the Tiangong space station aboard the Shenzhou-18 in April. Photo: AFP

China considering space facility location based on security in times of war

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A Long March-3B carrier rocket carrying navigation satellites blasts off from the Xichang Satellite Launch Centre on September 19. Photo: Getty Images

China is quietly extracting itself from a US helium ‘stranglehold’

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Scientific and engineering advances are shifting China away from a US-controlled monopoly of helium, according to experts. Photo: Shutterstock

Video | How China built the world’s longest high-speed railway

China had the world’s longest high-speed rail network by January 2011. How did the country do it?

The giant sphere that China hopes will track elusive neutrinos

The Juno detector is in position at the Jiangmen Underground Neutrino Observatory in Jiangmen, Guangdong province. Photo: Xinhua

Chinese archaeologists uncover a tomb ‘fit for a king’ in Neolithic burial site

The excavation site of the M27 tomb at Wangzhuang village in Henan province, central China. Photo: Xinhua

China unveils road map to become world leader in space science by 2050

videocam
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Chinese astronauts (from left) Li Guangsu, Li Cong and Ye Guangfu wave before their journey to the Tiangong space station aboard the Shenzhou-18 in April. Photo: AFP

China considering space facility location based on security in times of war

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A Long March-3B carrier rocket carrying navigation satellites blasts off from the Xichang Satellite Launch Centre on September 19. Photo: Getty Images

China is quietly extracting itself from a US helium ‘stranglehold’

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Scientific and engineering advances are shifting China away from a US-controlled monopoly of helium, according to experts. Photo: Shutterstock

Video | How China built the world’s longest high-speed railway

China had the world’s longest high-speed rail network by January 2011. How did the country do it?

The giant sphere that China hopes will track elusive neutrinos

The Juno detector is in position at the Jiangmen Underground Neutrino Observatory in Jiangmen, Guangdong province. Photo: Xinhua
MORE CHINA SCIENCE NEWS
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