Κυριακή 5 Ιουλίου 2015
Τετάρτη 1 Ιουλίου 2015
Parrot Unveils a Hydrofoil Drone
Parrot Unveils a Hydrofoil Drone
Parrot, a leader in consumer drone tech, came to aNEW YORK CITY HOTEL
last week to show off it’s latest products. Most of what was on offer were upgrades to Parrot’s existing rolling and flying drones, such as the Jumping Race drone that has widened wheels and can reach almost 13 kilometers per hour and jump over 75 centimeters through the air. A nice addition on the flying side is the Airborne Cargo, which has a small patch on top that allows owners to attach what are officially referred to as “toy bricks” by Parrot (read “Lego blocks”) and enhance their drone with their own creations.
last week to show off it’s latest products. Most of what was on offer were upgrades to Parrot’s existing rolling and flying drones, such as the Jumping Race drone that has widened wheels and can reach almost 13 kilometers per hour and jump over 75 centimeters through the air. A nice addition on the flying side is the Airborne Cargo, which has a small patch on top that allows owners to attach what are officially referred to as “toy bricks” by Parrot (read “Lego blocks”) and enhance their drone with their own creations.
But the big draw was the drone zigzagging back andFORTH in a rooftop pool, and not just because it was a melting-the-tarmac-hot day in New York. This was the Hydrofoil, which as its name indicates, is a boat fitted with plastic hydrofoils projecting beneath its foam hull. As the boat increases its speed, eventually enough lift is generated from water passing over the hydrofoils to lift the hull out of the water. The result is a dramatic reduction in the drag that must be overcome when a hull normally cuts through water, producing a corresponding jump in the speed of the boat (and the drone’s battery life). The Hydrofoil can reach over 9.5 km/h, and, based on my repeated collisions with the narrow walls of this particular pool, is pretty robust.
in a rooftop pool, and not just because it was a melting-the-tarmac-hot day in New York. This was the Hydrofoil, which as its name indicates, is a boat fitted with plastic hydrofoils projecting beneath its foam hull. As the boat increases its speed, eventually enough lift is generated from water passing over the hydrofoils to lift the hull out of the water. The result is a dramatic reduction in the drag that must be overcome when a hull normally cuts through water, producing a corresponding jump in the speed of the boat (and the drone’s battery life). The Hydrofoil can reach over 9.5 km/h, and, based on my repeated collisions with the narrow walls of this particular pool, is pretty robust.
Cleverly, Parrot did not create a dedicated hydrofoilDESIGN: instead the hull is equipped with a cradle into which a flying minidrone can be fitted (the minidrone can be flown completely independently). When the drone is powered up, the cradle flips the drone through 90 degrees, turning the normally vertical lift from its propellers into horizontal motion. Thesmartphone app used to control the drone handles the switch from the control model used to fly the plane through the air in three dimensions to the two-dimensional mode used to control the Hydrofoil.
: instead the hull is equipped with a cradle into which a flying minidrone can be fitted (the minidrone can be flown completely independently). When the drone is powered up, the cradle flips the drone through 90 degrees, turning the normally vertical lift from its propellers into horizontal motion. Thesmartphone app used to control the drone handles the switch from the control model used to fly the plane through the air in three dimensions to the two-dimensional mode used to control the Hydrofoil.
Prices for the new drone models range between US $99 and $189.
Video by Kristen Clark.
Many feared dead after millions hit by China floods
Heavy flooding and landslides caused by torrential downpours have affected nearly four millionPEOPLE in China, with at least 15 feared dead.
in China, with at least 15 feared dead.
The floods, which hit southwest China's Sichuan Province, damaged homes and destroyed vehicles.
A huge landslide hit Barkam County and thousands of residents have been evacuated across the country.
A couple buried under ruins after their house collapsed in Tongnan District in Chongqing on Tuesday morning were rescued by firefighters.
Απόσπασμα της ομιλίας της Μέρκελ στη γερμανική Βουλή
Δημοσιεύτηκε στις 1 Ιουλ 2015
Καμία συζήτηση με την Ελλάδα δεν μπορεί να γίνει πριν από το δημοψήφισμα της Κυριακής, ξεκαθάρισε η Άγκελα Μέρκελ μιλώντας πριν από λίγο στη γερμανική Βουλή.
Αίγυπτος: Τουλάχιστον 15 νεκροί στρατιώτες σε μια σειρά επιθέσεων που διεκδικούν από τον IU--Égypte : au moins 15 soldats morts dans une série d'attaques revendiquée...
By Yusri Mohamed and Ahmed Hassan
ISMAILIA/CAIRO, Egypt (Reuters) - At least 30 people were killed when Islamist militants attacked several checkpoints in Egypt's North Sinai on Wednesday, security and medical sources said, in one of the biggest coordinated assaults yet in the insurgency-hit province.
Islamic State's Egyptian affiliate, Sinai Province, claimed responsibility for the attacks in a statement on Twitter.
It was second high-profile action in Egypt this week. On Monday, the prosecutor-general was killed in a car bombing in Cairo, raising questions about the government's ability to contain the insurgency.
The army said five checkpoints were attacked by about 70 militants and that soldiers had destroyed three landcruisers fitted with anti-aircraft guns.
Security sources said militants were surrounding a police station in the town of Sheikh Zuweid and had planted bombs around it to prevent forces from leaving.
Doctor Osama el-Sayed of El-Arish General Hospital in the provincial capital said 30 bodies had been brought in, "some of whom were wearing army fatigues".
The exact breakdown of identities of those killed was not immediately clear. Security sources had said at least 20 security personnel were killed and 40 wounded. The army spokesman said 22 of the attackers were killed and 10 soldiers were killed or wounded.
Security sources said the militants had planted bombs along a road between Sheikh Zuweid and an army camp to prevent the movement of any army supplies or reinforcements. Meanwhile, Apache helicopters and F-16 planes strafed the area.
The insurgency based in the Sinai is seeking to topple the Cairo government and has managed to defy one of the toughest security crackdowns in Egypt's history.
It has intensified since 2013, when then-army chief Abdel Fattah al-Sisi removed President Mohamed Mursi, an Islamist, after mass protests against his rule. Hundreds of policemen and soldiers have been killed in attacks since then.
The most active militant group in the region is Sinai Province, which has pledged allegiance to Islamic State.
It said in Wednesday's statement that it had attacked more than 15 security sites and carried out three suicide bombings.
The group had urged its followers to escalate attacks during the Islamic holy month of Ramadan which started in mid-June, though it did not specify Egypt as a target.
In a recent tactic, Sinai Province has fired rockets at the direction of an airport used by multinational peacekeeping forces.
In late April, the army extended by three months a state of emergency imposed in parts of Sinai since October after 33 security personnel were killed in an attack claimed by Sinai Province.
The army has taken several measures to crush the insurgency. Aside from bombardments in the region, they have destroyed tunnels into the Palestinian-ruled Gaza Strip and created a security buffer zone in northern Sinai.
The army was also digging a trench along the border with Gaza in an effort to prevent smuggling.
The measures have stoked resentment among some residents, who say they rely on the smuggling trade through the tunnels and complain of neglect by the state.
Tuesday also marked the second anniversary of protests that preceded the overthrow of Mursi.
President Sisi said he would bring in tougher legal measures in coming days after the killing of the prosecutor, Hisham Barakat, the most senior Egyptian official to die in such an attack in years.
Sisi's government does not distinguish between the now-outlawed Brotherhood and other militants. The Brotherhood says it is committed to peaceful activism.
(Additional reporting by Mahmoud Mourad and Ahmed Tolba; Writing by Yara Bayoumy, Editing by Angus MacSwan)
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