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Is Israel's Iron Dome missile defense system ironclad?_我的网站

A |     JERUSALEM -- Since Israel activated the Iron Dome in 2011, the cutting-edge rocket-defense system has intercepted thousands of rockets fired from the Gaza Strip.The system has given residents a sense of security, and Israelis can often be seen watching the projectiles flying through the skies and destroying their targets overhead.But the current war with Hamas might be its stiffest challenge yet.In just two weeks, Hamas has fired 7,000 rockets toward Israel, according to the Israeli military. That is more than any of the previous four wars fought between Israel and Hamas since the militant group seized power in Gaza in 2007. On Oct. 7 alone, the first day of fighting, Hamas launched at least 2,000 rockets, according to data from West Point. Lebanon's Hezbollah has also fired hundreds of rockets along Israel's northern front since the fighting began.Most of the rockets have been intercepted. But some have managed to get through, killing at least 11 people and hitting buildings as far away as Tel Aviv, according to Israeli officials.Here is a look at the accomplishments — and limitations — of the Iron Dome.The Iron Dome is a series of batteries that use radars to detect incoming short-range rockets and intercept them.Each battery has three or four launchers, 20 missiles, and a radar, according to Raytheon, the U.S. defense giant that co-produces the system with Israel's Rafael Defense Systems.Once the radar detects a rocket, the system determines whether the rocket is headed toward a populated area. If so, it launches a missile to intercept and destroy the rocket. If the system determines the rocket is headed to an open area or into the sea, it is allowed to land, thus conserving missiles. According to the military, all interceptions occur in Israeli airspace.The military declined to comment on how many Iron Dome batteries are currently deployed. But as of 2021, Israel had 10 batteries scattered around the country, each able to defend a territory of 60 square miles (155 square kilometers), according to Raytheon. It is roughly 90% effective, according to Rafael.But it can get overwhelmed if a mass barrage of rockets is fired, allowing some to slip through. While it has performed well so far, the risk could be raised if Hezbollah enters the war. Hezbollah has an estimated 150,000 rockets and missiles.Each missile costs an estimated $40,000 to $50,000, according to the Institute for National Security Studies, a Tel Aviv think tank.The U.S. has invested heavily in the system, helping with development costs and replenishing it during times of fighting.President Joe Biden has said he will ask Congress for $14.3 billion in military aid for Israel. The majority of that would help with air and missile defense systems, according to the White House.“We’re surging additional military assistance, including ammunition and interceptors to replenish Iron Dome,” Biden said.___Find more of AP’s coverage at https://apnews.com/hub/israel-hamas-war。1月16日，有消息称，今年的微博年会将于今晚在北京国家奥林匹克中心举行。会议的奖品是2000股新浪股票。根据新浪目前的股价，约为11.4万元，即7.6万元。然而，根据微博CEO@来去之间的说法，微博说：“我们画了两个工作数字，没有人来……一等奖原来是根据员工人数抽奖的，但第三名没有人，所以改为抽奖方式。股票作为年度会议的奖品仍然很新颖。

B | 一般来说，互联网公司喜欢发送一些流行的技术产品。

C | 例如，今年的大型游戏奖是iPhone XS Max、Dayson吹风机和Swash游戏机。小米年会的奖品是小米手机、小米电视等，特别奖品是价值16万元的小鹏车（21辆）。腾讯年会的奖项有：苹果家族的木桶（iPhone XS Max、Apple Watch 4、iPad Pro、Airpods）、任天堂交换机、代森吹风机、索尼黑卡数码相机、扫石机器人、华为Mate20 Pro，这些都是非常实用和受欢迎的数字技术产品。此外，小玛吉再次闪耀，为您带来2018年最受欢迎的才艺秀，“创10”主题歌舞表演“1”。

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