What is the best repellent to avoid being bitten by a mosquito carrying the Zika virus? This question was originally answered on Quora by Tirumalai Kamala.
Spin a coin on a flat surface, and it spirals much like a planet orbiting a star — at least until it runs out of steam and rattles to a stop on the table. But spin a wedding ring the same way, and it will make a surprising abrupt turn, following a trajectory more like a boomerang.
China’s 4G mobile users surpassed 250 million for the first time at the end of July, according to newly released data (link in Chinese) from China’s Ministry of Industry and Information Technology (hat tip to TechNode). If you throw 3G users into the mix, that number shoots up to a whopping 695 million users, with China’s total mobile user base now at 1.29 billion.
250 million is a milestone to be celebrated — it represents 4G penetration of nearly 20 percent, versus 40 percent (over 100 million) in the US at the end of 2014. Still, the figure belies a slightly shadier forecast: The report made clear that China’s mobile user growth rate so far this year has slowed to just a quarter of what it was over the same period in 2014.
Meanwhile, a separate report by the country’s state-run English-language newspaper China Daily over the weekend notes that the country has achieved this explosive growth in a mere 20 months since regulators first issued telcos 4G licenses. Though, somewhat confusingly, the article pegs the country’s 4G user base at 225 million, possibly in reference to June’s numbers rather than July’s.
Xinhua, the Chinese government’s official press agency, on Monday also had the 250 million number. The same report pointed out that the country’s three telecom giants — China Telecom, China Unicom, and China Mobile (currently the world’s largest telco) — “raked in a total of 75.3 billion yuan (about $ 11.8 billion) in the first half of 2015.” This was largely off the back of continued 4G growth.
Combined, 3G and 4G in the country now have a penetration of close to 54 percent among mobile users, according to the ministry’s report, and while the addition of new subscribers may be slowing, data consumption is through the roof. An average user in China now consumes around 330MB of data per month, almost twice as much (up 85 percent) as 12 months ago.
China’s International Telecommunication Union confirmed that it is actively developing 5G technology and industry, keeping up the blistering pace of development. But there has also been major reshuffling announced Monday at the very top levels of the country’s three telcos as Beijing aims to revamp state-owned firms.
4G growth aside, the broader challenges being faced by China’s volatile economy of late have rocked markets and tech stocks worldwide, leading Apple’s CEO Tim Cook to take the unusual step of issuing a statement to CNBC on Monday in an attempt to soothe investors. Apple, like an increasing number of smartphone makers, is heavily reliant (read: overexposed) on Chinese consumer demand to hit Wall Street’s targets.
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Placentas are amazing organs, and we’re learning that they do so much more than simply manage the movement of nutrients and wastes between mother and fetus. In this month’s issue of The Scientist, placenta expert Christopher Coe explains its other roles, including hormonal regulation, iron storage, and immune system training.
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