African teens come up with 'pee-powered' generator

November 12, 2012

pee_power


London, November 12: In a breakthrough, four teenage schoolgirls in Nigeria have invented a ‘pee-powered' generator that converts one litre of urine into six hours of electricity.


Fourteen-year-olds Duro-Aina Adebola, Akindele Abiola, Faleke Oluwatoyin, and 15-year-old Bello Eniola presented their invention at the Maker Faire Africa entrepreneurs event, in Lagos, using a resource that is free, unlimited and easily obtainable.

According to the Maker Faire blog, urine is put into an electrolytic cell, which cracks the urea into nitrogen, water, and hydrogen.

The hydrogen goes into a water filter for purification, which then gets pushed into the gas cylinder, the Daily Mail reported.

The gas cylinder pushes hydrogen into a cylinder of liquid borax, which is used to remove the moisture from the hydrogen gas.

This purified hydrogen gas is pushed into the generator, and one litre of urine provides six hours of electricity.

Maker Faire blog described the generator as “possibly one of the more unexpected products” at the event.

While the system does have one-way valves for safety, more robust measures may be needed before it can be sold widely.

The report noted: “Let's be honest that this is something of an explosive device”.


Nigeria's economy is on the rise, however, more than half of the country's 162 million citizens have no access to electricity, and even those who do can't guarantee having power every day, the report said.



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Agencies
July 24,2020

Chengdu, Jul 24: China on Friday asked the US to close down its Consulate in Chengdu in retaliation to Washington's decision to shut the Chinese Consulate in Houston.

A statement by the Chinese Foreign Ministry said China has informed the US Embassy of its decision to withdraw its consent for the establishment and operation of the US Consulate General in Chengdu.

This was in response to "unilateral" decision by the US to shut the Houston Consulate. China's decision is legitimate and necessary response to the unreasonable actions of the US, it said.

The US on Wednesday ordered the closure of the Chinese consulate in Houston, a move it said was aimed "to protect American intellectual property and private information."

Reacting strongly to the US move, Chinese Foreign Ministry spokesman Wang Wenbin termed it as an "unprecedented escalation and warned retaliatory measures.

China on Thursday said that "malicious slander" is behind an order by the US government to close its consulate in Houston, Texas, and maintained that its officials have never operated outside ordinary diplomatic norms.

Wang said the order to close the consulate violates international law and basic norms governing international relations, and seriously undermines China-US relations.

This is breaking down the bridge of friendship between the Chinese and American people, Wang said.

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Agencies
July 29,2020

If everything goes as Russia’s expectation, it will be world’s first country to approve a coronavirus vaccine for widespread in the second week of August despite safety and efficacy concerns, according to a report. The adenoviral vector-based vaccine developed by Russian military and government researchers is currently in phase 2 trials.

According to a report from CNN, Russian officials are hoping to get approval for the COVID-19 vaccine developed by the Moscow-based Gamaleya Institute on Agust 10 or even before that. The officials told the outlet that the vaccine will be approved for public use with frontline healthcare workers receiving it first.

“It’s a Sputnik moment,” said Kirill Dmitriev, head of Russia’s sovereign wealth fund, which is financing Russian vaccine research, referring to the successful 1957 launch of the world’s first satellite by the Soviet Union, according to CNN.

“Americans were surprised when they heard Sputnik’s beeping. It’s the same with this vaccine. Russia will have got there first,” he was quoted as saying.

However, Russia is yet to release the scientific data on its coronavirus vaccine trials, hence, questions remain about the safety and efficacy of the vaccine, said the report. The vaccine is in the second phase of testing with developers planning to launch the phase 3 trials sometime after August 3.

Earlier, Interfax reported, citing Health Minister Mikhail Murashko, that the vaccine will be widely used in parallel with phase 3 trials. He said the country plans to vaccinate medics who are at high-risk for COVID-19 next month before clinical trials are completed.

Murashko added that individuals at higher risk of getting infected with the coronavirus such as older people or those with health conditions will also be prioritised for the vaccine, although he did not estimate or reveal when that would happen. The minister added 800 people will be recruited for the phase 3 trials.

Meanwhile, health officials were more cautious considering the fact that human testing of the vaccine is incomplete, and the state registration is expected to begin after August 3, reported The Moscow Times.

On Monday, Moderna and Pfizer announced the commencement of the final phase 3 trials of their candidate vaccines against the SARS-CoV-2 virus, which has so far claimed at least 654,477 lives and infected 16,514,500 people worldwide. 

Researchers will recruit up to 30,000 volunteers in separate trials both backed by the US government. India's first indigenous coronavirus vaccine, COVAXIN, is undergoing phase 1 human clinical trials across the country. More than 150 COVID-19 vaccines are being developed all over the world with at least six candidates already in late-stage clinical trials.

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Agencies
February 4,2020

As the deadly coronavirus has spread worldwide, it has carried with it xenophobia -- and Asian communities around the world are finding themselves subject to suspicion and fear.

When a patient on Australia's Gold Coast refused to shake the hand of her surgeon Rhea Liang, citing the virus that has killed hundreds, the medic's first response was shock.

But after tweeting about the incident and receiving a flood of responses, the respected doctor learned her experience was all too common.

There has been a spike in reports of anti-Chinese rhetoric directed at people of Asian origin, regardless of whether they have ever visited the centre of the epidemic or been in contact with the virus.

Chinese tourists have reportedly been spat at in the Italian city of Venice, a family in Turin was accused of carrying the disease, and mothers in Milan have used social media to call for children to be kept away from Chinese classmates.

In Canada, a white man was filmed telling a Chinese-Canadian woman "you dropped your coronavirus" in the parking lot of a local mall.

In Malaysia, a petition to "bar Chinese people from entering our beloved country" received almost 500,000 signatures in one week.

The incidents are part of what the Australasian College for Emergency Medicine has described as "misinformation" which it says is fuelling "racial profiling" where "deeply distressing assumptions are being made about 'Chinese' or 'Asian-looking' people." Disease has long been accompanied by suspicions of foreigners -- from Irish immigrants being targeted in the Typhoid Mary panic of 1900s America to Nepali peacekeepers being accused of bringing cholera to earthquake-struck Haiti in the last decade.

"It's a common phenomenon," said Rob Grenfell, director of health and biosecurity for Australia's science and research agency CSIRO.

"With outbreaks and epidemics along human history, we've always tried to vilify certain subsets of the population," he said, comparing the behaviour to 1300s plague-ridden medieval Europe, where foreigners and religious groups were often blamed.

"Sure it emerged in China," he said of the coronavirus, "but that's no reason to actually vilify Chinese people." In a commentary for the British Medical Journal, doctor Abraar Karan warned this behaviour could discourage people with symptoms from coming forward.

Claire Hooker, a health lecturer at the University of Sydney, said the responses from governments may have compounded prejudice.

The World Health Organisation has warned against "measures that unnecessarily interfere with international travel and trade", but this has not stopped scores of countries from introducing travel bans.

The tiny Pacific nation of Micronesia has banned its citizens from visiting mainland China altogether.

"Travel bans respond largely to people's fears," said Hooker, and while sometimes warranted, they often "have the effect of cementing an association between Chinese people and scary viruses".

Abbey Shi, a Shanghai-born student in Sydney, said the attitude shown by some of her peers has "become almost an attack on students who are Chinese".

While Australia's conservative government has banished its citizens returning from Wuhan -- the central Chinese city at the epicentre of the virus -- to a remote island for quarantine, thousands of students still stuck in China risk their studies being torpedoed.

"Right now it looks like they have to miss the semester's start and potentially the whole year, because of the way the courses are set up," Shi said.

According to Hooker, studies in Toronto on the impact of Severe Acute Respiratory Syndrome, or SARS -- another global coronavirus outbreak in 2002 -- showed the impact of xenophobic sentiment often lasted much longer than the public health scare.

"While there may be a cessation of direct forms of racism as news about the disease dies down, it takes quite a bit of time for economic recovery and people continue to feel unsafe," she said.

People may not rush back to Chinese businesses or restaurants, and may even heed some of the more outlandish viral social media disinformation -- such as one popular post imploring people to avoid eating noodles for their own safety.

"In one sense you might think the effects lasted from the last coronavirus to this one because the representation as China being a place where diseases come from has been persistent," Hooker said.

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