Text 3

                                                                                             Small, cold, and absurdly far away, Pluto has

                                                                                                            always been selfi sh with its secrets.

                THE X – FILES

      It wouldn´t be the fi rst time Pluto has confounded expectations. In 2006, the year New Horizons was launched, Pluto vanished from the list of planets and reappeared as a “dwarf planet.” That, of course, had more to do with astronomers on Earth than any celestial sleight of hand, but the truth is, Pluto has been a tough world to crack since before it was discovered.

      By the turn of the century, the hunt for that missing planet had gathered momentum: Whoever found it would earn the shiny distinction of discovering the first new planet in more than 50 years. Calling the rogue world “Planet X,”, Boston aristocrat Percival Lowell – perhaps best known for claiming to have spotted irrigation canals on the surface of Mars – vigorously took up the search. Lowell had built his own observatory in Flagstaff, Arizona, and in 1905 it became the epicenter of the search for Planet X, with Lowell calculating and recalculating its probable position and borrowing equipment for the hunt. 

      But Lowell died in 1916, without knowing that Planet X really existed.

      Fast-forward to 1930. Late one February afternoon, 24-year-old Clyde Tombaugh was parked in his spot at Lowell Observatory. A transplant from the farm fields of Kansas, Tombaugh had been assigned the task of searching for Lowell`s elusive planet. He had no formal training in astronomy but had developed a skill for building telescopes, sometimes from old car parts and other improbable items.

                                                                 (Source: National Geographic Magazine – July 2015 - http://

                                                                  ngm.nationalgeographic.com/ print/2015/07/ pluto/drake-text

                                                                                                                                                 (adapted))

Text 1

                                                                                                                            The good oil boys club

      It should have been a day of high excitement. A public auction on July 15th marked the end of a 77-year monopoly on oil exploration and production by Pemex, Mexico`s state-owned oil company, and ushered in a new era of foreign investment in Mexican oil that until a few years ago was considered unimaginable.

      The Mexican government had hoped that its firstever auction of shallow-water exploration blocks in the Gulf of Mexico would successfully launch the modernisation of its energy industry. In the run-up to the bidding, Mexico had sought to be as accommodating as its historic dislike for foreign oil companies allowed it to be. Juan Carlos Zepeda, head of the National Hydrocarbons Commission, the regulator, had put a premium on transparency, saying there was “zero room” for favouritism.

      When prices of Mexican crude were above $100 a barrel last year (now they are around $50), the government had spoken optimistically of a bonanza. It had predicted that four to six blocks would be sold, based on international norms.

      It did not turn out that way. The results fell well short of the government’s hopes and underscore how residual resource nationalism continues to plague the Latin American oil industry. Only two of 14 exploration blocks were awarded, both going to the same Mexican-led trio of energy fi rms. Offi cials blamed the disappointing outcome on the sagging international oil market, but their own insecurity about appearing to sell the country’s oil too cheap may also have been to blame, according to industry experts. On the day of the auction, the fi nance ministry set minimum-bid requirements that some considered onerously high; bids for four blocks were disqualifi ed because they failed to reach the offi cial fl oor.

                                                                (Source: http://www.economist.com/news/business/21657827-

                                   latinamericas-oil-fi rms-need-more-foreign-capital-historic-auctionmexico-shows)

                                             Smart Greenhouse

Control the light, watering, temperature, and humidity of your greenhouse – automatically.

                                                                                                                                  Kevin Farnham

      Smart Greenhouse, one of three professional category winner in the 2014 IoT Developer Challenge, is an Internet of Things (IoT) device and application that monitors and controls a greenhouse environment. The concept for Smart Greenhouse came into being after the core team – Dzmitry Yasevich, Pavel Vervenko, and Vladimir Redzhepov – attended JavaOne Russia in April 2013. There, the team saw presentations of a smart house, various robots, and other devices, all controlled by Java.

      Yasevich notes, “We were impressed by these solutions and had an idea to do something like that. Pavel Vervenko suggested making an automated greenhouse. Everyone liked the idea!”.

      First, the team selected the hardware. “We started to use Raspberry Pi as a basis”, Yasevich says. “It is a compact but fullfedged computer with 700 MHz and memory at 512 MB. This system costs around $35”.

      However, early on, a safety concern arose. “Current under high voltage passes in the greenhouse, and there is an automatic watering system, so it was necessary to properly consider all the aspects related to insulation”, Yasevich says.

(http://www.oraclejavamagazine-digital.com/8ef38d6e6f63e8971b9487ddb4bd4bdc/558dae0a/pp/javamagazine20150304-1429053481000c51ce41 0c1-pp.pdf?lm=1429053481000)