Sand is all around us but supplies are fast running out. It is the chief ingredient in cement and the hidden hand behind the explosion of cities worldwide. China is its top consumer — devouring more than 60 percent of the global output and using more sand in four years than the United States did in the entire 20th century.
Videographics
September 11, 2001 (Videographic)
(AFP) Fifteen years after the September 11 attacks, US anti-terror officials say the country is hardened against such well-developed plots but remains as vulnerable as ever to small and especially home-grown attacks. Stéphane Koguc Peter Shard / AFP Videographics / AFP
International Space Station
An American astronaut who set the US record for cumulative time in orbit safely returned to Earth early Wednesday along with two Russian cosmonauts after a six-month mission aboard the International Space Station. https://youtu.be/JVSpjf6Huqc
Ocean acidification
Global warming is making the oceans sicker than ever before, spreading disease among animals and humans and threatening food security across the planet, a major scientific report said on Monday. The report highlights the need for swift action on renewable energies, experts said. A quarter of carbon dioxide emissions — more than two billion tonnes of the gas — are absorbed by the oceans each year. https://youtu.be/59PoqHpmsEc
How earthquakes happen
Seismic activity is concentrated along fault lines areas of fracture in the Earth’s crust generally found near ridges or tectonic plate boundaries. Constantly in motion, these huge plates sometimes collide, forcing one beneath the other. The resulting friction creates energy along the fault lines, which eventually become unstable and rupture, sending out a shock wave. The energy released is felt as an earthquake. After the initial jolt, aftershocks can strike as neighboring plates […]
Videographic explaining how hurricanes form
(AFP) Hong Kong shut down Tuesday as Typhoon Nida brought violent winds and torrential rain, with hundreds of flights cancelled and the stock market, schools and businesses closed, as the storm headed across southern China. Videographic explaining how hurricanes – also known as cyclones or typhoons – form. Marian Henbest Stéphane Koguc / AFP Videographics / AFP
The Solar Impulse 2
(AFP) The Solar Impulse 2 has broken several records during its 35,400-kilometre round-the-world journey, completing the first solo transatlantic flight powered only by sunlight, and the longest uninterrupted journey in aviation history. David Lory / AFP Videographics / AFP
Brexit – how Britain voted
(AFP) British voters’ decision to leave the European Union highlighted working class dissatisfaction with the UK and Europe’s ruling elite and the mass appeal of populist politics. Videographic showing how the four nations of the United Kingdom voted. David Lory Katherine Levy Spencer / AFP Videographics / AFP
Britain – EU relations
(AFP) The average of the last six British European Union referendum polls put the Remain and Leave camps neck-and-neck at 50-50, excluding undecided voters, according to the What UK Thinks website. Videographic about relations between Britain and the European Union. Fred. Garet Katherine Levy Spencer / AFP Videographics / AFP
Cryotherapy for sports’ injuries
(AFP) The use of cryotherapy for sports’ injuries involves placing the athlete in a very cold chamber (-110 degees) for at least five minutes. Stéphane Koguc Peter Shard / AFP – VIDEOGRAPHICS / AFP
La Niña phenomenon
(AFP) La Nina, a weather phenomenon that periodically causes devastating droughts and storms, will likely occur more frequently and more violently this century as a result of global warming, according to researchers. https://www.youtube.com/watch?v=pG04ZyufAl8 Fred Garet Marian Henbest / AFP Videographics / AFP