Peering into the thousands of frozen layers inside Greenland’s ice sheet is like looking back in time. Each layer provides a record of not only snowfall and melting events, but what the Earth’s climate was like at the dawn of civilization, or during the last ice age, or during an ancient period of warmth similar to the one we are experiencing today. Using radar data from NASA’s Operation IceBridge, scientists have built the first-ever comprehensive map of the layers deep inside the ice sheet.
Παρασκευή 23 Ιανουαρίου 2015
Inside Track: Leg 3 #14 | Volvo Ocean Race 2014-15
Δημοσιεύτηκε στις 22 Ιαν 2015
Hectic is the word of the day as the fleet squirms through the Singapore Strait and out into the 7th Sea of this leg, the South China Sea.
Iraq War 2015 - Battle For Mosul: Kurdish Peshmerga Fight ISIS During As...
Δημοσιεύτηκε στις 22 Ιαν 2015
Iraq War 2015 - Battle For Mosul: Kurdish Peshmerga Supported By U.S. Airstrikes Fight ISIS During Assault Towards Mosul. Kurdish Peshmerga fighters, backed by U.S. Airstrikes in the form of A-10 Gun runs and JDAM strikes on ISIS positions, started an assault towards the citiy of Mosul in order to capture it back from ISIS fighters who overtook the town in 2014. Recapturing the city of Mosul was one of the goals for 2015 and the battle just started as Kuridsh fighters began to fight their way towards the citiy. Mosul is a city of over a million people in northern Iraq, some 400 km north of Baghdad. It is currently the largest city controlled by the Islamic State of Iraq and Syria. The original city stands on the west bank of the Tigris River, opposite the ancient Assyrian city of Nineveh on the east bank, but the metropolitan area has now grown to encompass substantial areas on both banks. After the new year started for the Kurds in Syria with heavy ongoing clashes fighting and firefights in the Battle for Kobani now Iraqi Kurds started their offensive against IS in Iraq. The push for the city just begun and in the future more footage is exepted from the battle for Mosul.
Haibike xDuro AllMtn Pro 2015 eBike Review
Haibike xDuro AllMtn PRO 27.5 2015 Bosch
£5,499.00
| General Bike Specifications | |
| Frame | Alu 6061, 27.5", All Mountain, 150mm, 4-Link System, Equalizing System, Gravity Casting Interface, hydroforced tubes |
| Forks | Fox 34 Talas CTD Adjust FIT, 120-150mm, Kashima, tapered |
| Rear Shock | Fox CTD LV Kashima 200 mm, 8-22,2/22,2 |
| Brakes | Sram Guide RSC, hydraulic disc brake 180 / 200mm |
| Shifters | Sram X1 Trigger |
| Rear Mech | Sram X1, 11-Speed |
| Crankset | The Hive, Exalite R Forged Aluminium |
| Cassette | Sram XG1180, 10-42 Teeth, 11-Speed |
| Chain | Sram X1 |
| Wheelset | Crank Brothers Iodine 2, front: 15mm, rear: 142/12mm axle |
| Tyres | Schwalbe Hans Dampf PSC, foldable, 27.5x2.25 |
| Handlebars | Xduro Lowriser aluminum 31.8mm |
| Stem | Xduro Alu, A-Head 1 1/8" 31.8 |
| Headset | FSA no. 57, A-Head, semi-integrated, tapered |
| Seatpost | Kind Shox LEV-DX, Remote, 31,6mm |
| Saddle | Xduro Light AMT |
| Weight | 20.9kg |
| Electric Bike Specifications | |
| Battery | Lithium Ionen 36 Volt, 400 Wh |
| Display | Bosch Nyon Bordcomputer with operation unit, push-assistance & GPS |
| Motor | Bosch Midmount Performance 36 Volt, 250 Watt |
| Range | 30-110 miles range, cost to charge from flat - 6 pence |
Crazy Engineering: Mars Helicopter
Δημοσιεύτηκε στις 22 Ιαν 2015
JPL engineers are working on a small helicopter that could ‘scout’ a trail for future Mars rovers, but getting a chopper that could fly in the Martian atmosphere is tricky. Episode 2 of Crazy Engineering.
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