银川不锈钢解剖台糸列辽宁人体解剖挂图-神经系统,新疆高级腹部触诊、分娩机转综合模型,胸腔(胸腔内器官)解剖模型价格,河北静止期双乳房模型,驻马上肢层次解剖模型,四川消化系统浮雕模型,阜新高级肘关节腔内注射模型

In a series of unusually candid remarks, the US general in charge of the nation's nuclear arsenal has issued a stark warning that Russia and China are "aggressively" developing new high-speed, or hypersonic, weapons that the US currently has no defense against.The weapons might not be operational for several years, but Gen. John Hyten, the four-star head of US Strategic Command, is warning that changes to missile defenses are urgently needed or the US will be unable to detect them when they are operational."China has tested hypersonic capabilities. Russia has tested. We have as well. Hypersonic capabilities are a significant challenge," Hyten told CNN in an exclusive interview. "We are going to need a different set of sensors in order to see the hypersonic threats. Our adversaries know that."Hyten and other military officials say the current generation of missile detecting satellites and radars won't be enough to detect these new generation weapons. Hypersonic is generally defined as a speed of Mach 5 or over 3,806 miles per hour."We've watched them test those capabilities," Hyten told Congress last week. But with unusual public candor about potential US military shortfalls, he acknowledged "we don't have any defense that could deny the employment of such a weapon against us, so our response would be our deterrent force, which would be the triad and the nuclear capabilities that we have to respond to such a threat."Hypersonic missiles fly into space after launch, but then come down and fly at high speeds on a flight path similar to an airplane. Their lower trajectory make them more difficult for US missile defense satellites and radars to detect. Russia has openly stated it is developing high-speed air-launched missiles as well as underwater hypersonic drones.The Pentagon is currently writing a review of its missile defenses to help determine what new capabilities might be needed to deal with new classes of attack weapons. Hyten gave Congress a hint of what may be in that review stating "the first thing we need is better sensor capability, better tracking capabilities to make sure we can characterize and then respond to that threat."He also called for improved US warheads, essentially "better kill vehicles on the top of our interceptors so that those kill vehicles become more and more lethal." The Pentagon is also working on concepts for interceptor missiles that repel a barrage of enemy attack missiles. Current US missile defenses are designed to only shoot down a small number of enemy missiles.The US focus has largely been to work on hypersonic technologies across the board. But Russia is now well into testing some of its systems. Earlier this month Russia showed video of what the Kremlin said was an air-launched hypersonic ballistic missile.When asked how far along the Russian hypersonic program is, Hyten told CNN, "I don't want to put a who's winning the race, I'll just say there is a race."When asked how soon it could be before the Russians have an operational hypersonic weapon that could reach the US, Hyten said, "It's similar to the North Korea problem. If you continue to pursue that technology, you will get there. And the Russians will get there, the Chinese will get there and we'll get there -- and we'll have to figure out how to deal with that." 3323

I watched with horror this week as USAID distributed taxpayer funded documents claiming “we cannot tell someone’s sex or gender by looking at them” and that not calling oneself “cis-gendered” is a microagression I’m not cis-anything. I’m a woman.— Merritt Corrigan (@MerrittCorrigan) August 3, 2020 306

I will be overturning this ridiculous order immediately! https://t.co/sFIX5Y667v— Donald J. Trump (@realDonaldTrump) October 1, 2020 140

IMPERIAL BEACH, Calif. (KGTV) - Loved ones are mourning the COVID-19 death of a beloved Imperial Beach grandmother."I have no words. So hard," said a tearful Angelica Madrigal, the daughter of Juana Barajas.Barajas, 61, first became sick last week. By the next day, a fever had arrived."Chest congested and shortness of breath," said Madrigal. "She called me and said, 'I can’t breathe well.'"An ambulance rushed Barajas to the hospital. She tested positive for COVID-19 and that night, she was placed on a ventilator.Barajas, who lived with diabetes and a heart condition, suffered four heart attacks in the ICU. On Saturday, just five days after she first became ill, Barajas, a mother of three and grandmother of three, passed away."I couldn’t touch her. I couldn’t say goodbye. Had to see her through a window," said Madrigal.Madrigal says her mother was hard-working, humble, and loved to joke around."Since I was kids, she always had two or three jobs," said Madrigal. "She was my best friend. She was everything to me."Madrigal isn’t sure how her mom contracted the virus, but says her health issues meant she did have many doctor's appointments.Madrigal says her mother otherwise stuck close to home and wore a mask.In the days after her mother's death, she and several other members of her family have come down with symptoms, including a fever and a cough. They spent Friday morning waiting in line to receive a COVID-19 test."This is serious, this is not a joke. People need to take this seriously. If it happened to me, it can happen to you," said Madrigal.A GoFundMe campaign has been set up to help the family with expenses. 1646

If you've never tried cold brew coffee, now is your chance! If you love cold brew coffee, today is your day to get some for free!Dunkin' Donuts is giving away free 3.5-ounce samples of their cold brew on Friday (April 6) from 10 a.m. to 2 p.m., while supplies last. What is cold brew? It's a special blend of coffee that is crafted by hand in small batches and steeped in cold water for 12 hours. The result is sweeter, almost reminiscent of dark chocolate and smooth and bold. Get more info about Friday's freebie here. 548