Raj Prasad from Siliguri wants to know: What are light-emitting diodes?
In pursuit of Catalonia's independence, there is a lot of expectation on Barcelona's football club. Nevertheless, many are critical of the biggest club in the region getting so involved the political world.
Justice Minister Katarina Barley said the Cambridge Analytica scandal bombarded users with hate speech. Facebook CEO Mark Zuckerberg has been called to answer questions in the UK's criminal probe into the data breech.
Rather than debating the facts of climate change, oil companies in the dock in California are questioning how long a climate consensus has existed. Two cities are suing oil companies for costs related to global warming.
More than two billion of us use this social network — but even just 15 years ago it didn't exist. The question is: How did Facebook come to dominate the web?
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