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Drill bit guide and water delivery system is a drilling accessory designed to stabilize diamond drill bits while supplying water directly to the cutting edge during drilling.

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World of Engineering

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107,557 Aufrufe • vor 5 Monaten •via X (Twitter)

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The Curiosity rover broke free from the "captivity" it had found itself in just a few days earlier – on April 25th, after drilling into a rock, it literally "stuck" to the drill bit and refused to release. Instead of breaking apart during the drilling, the rock was pulled out of the surface in one piece and remained hanging on the drill bit as the robotic arm began to lift. And it wasn't just a small fragment. NASA estimates the rock was about half a meter wide, about 15 cm thick, and weighed about 13 kg. At first, the scientists tried to dislodge it by vibrating the drill, hoping the rock would shake off on its own. This didn't work. A few days later, they repositioned the robotic arm and turned on the vibration again. Sand fell off the rock, but it remained attached. Then, on May 1st, the engineers used a more aggressive sequence of actions: they tilted the drill bit more sharply, began rotating it, and simultaneously increased the vibration. It worked – on the first try, the stone finally broke loose, fell onto the surface of Mars and split.
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wonwoo is so 😭 🍊(sings a bit of candy) 🐈 personally i like candy the most 🎥 ohhhh that was so nice 🐯 sing water 🎥 do you have anything to show, wonwoo? show us 🐈 WATER WATER WATER WATER WATER 🤙
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In the first video, people in Donetsk are seen greeting a water tanker. In the second video, during the rain, people try to collect at least a drop of water because the water pipeline from the Siverskyi Donets was destroyed by the Russians. When Donetsk was not occupied by Russia, the city hosted the European Football Championship, as well as concerts by Rihanna and Beyoncé. Now, there is no more running water in the city. According to the schedule, water only appears in taps once every three days, and even then it doesn’t reach every household, so water has to be delivered by tankers, with long queues forming for it. People use plastic bags as toilets, and this filth spreads everywhere. This is happening not only in Donetsk - water is supplied once every two days in a number of other cities, including Mariupol. This is how Russia 'liberated' Donbas. Why is this happening? In the past three and a half years - since Russia launched its full-scale invasion of Ukraine in February 2022 - reservoirs in Donetsk Oblast have significantly dried up. The water supply system from the Siverskyi Donets River was destroyed. The region’s reservoirs and underground water sources are not enough to meet the needs of the population, in part due to the extensive network of coal mines. When the self-proclaimed “DPR” and “LPR” were created in 2014, Ukraine did not cut off this water channel, as it was still supplying water to Mariupol, which remained under Ukrainian control. But at the start of the Russian invasion in February 2022, the situation changed: the Russian army, during its offensive, destroyed a unique hydraulic structure that had supplied the region’s largest cities with water. The Russian authorities decided to build a new canal - the Don–Donbas canal - which was supposed to begin in the Rostov-on-Don area. It soon became clear that the new water pipeline, first of all, could not provide the region with the necessary amount of water, and second, it was built with numerous violations, with a large portion of the budget embezzled during construction. Crimea is also suffering from a water shortage, and the situation is worsening. One of the reasons why Russia is striving to seize southern Ukraine is that it sees this as a way to "solve the water issue" for the occupied territories.

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This is Plot No. 16 in Neopolis by Godrej. They have been drilling without any dust suppression. A simple water spray during drilling can significantly reduce the dust, but Godrej Properties Limited doesn’t seem to care about pollution or public health. They are just pumping dust into the sky. Even after promising action following my complaints, DC Narsingi Circle 45, CMC seems to be acting helpless. What is the use of sending notices if they don’t even enforce basic checks? FYI Srijana Gummalla Cyberabad Municipal Corporation Commissioner, Cyberabad Municipal Corporation Jayesh Ranjan
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This is Plot No. 16 in Neopolis by Godrej. They have been drilling without any dust suppression. A simple water spray during drilling can significantly reduce the dust, but Godrej Properties Limited doesn’t seem to care about pollution or public health. They are just pumping dust into the sky. Even after promising action following my complaints, DC Narsingi Circle 45, CMC seems to be acting helpless. What is the use of sending notices if they don’t even enforce basic checks? FYI Srijana Gummalla Cyberabad Municipal Corporation Commissioner, Cyberabad Municipal Corporation Jayesh Ranjan

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