#考考文博英语时刻# Stone chimes
This stone chime—chipped and chiseled from greenish-grey hornstone—was unearthed from the Taosi site in Xiangfen County, Shanxi Province. It exhibits an irregular polygonal shape with one short and wide side and one long and slim side. The two sides’ upper edges intersect and form an angle of roughly 160 degrees below where a hole for suspension is drilled. The rope abrasion marks inside the hole indicate that the stone chime served long-term usage.[并不简单]
This stone chime—chipped and chiseled from greenish-grey hornstone—was unearthed from the Taosi site in Xiangfen County, Shanxi Province. It exhibits an irregular polygonal shape with one short and wide side and one long and slim side. The two sides’ upper edges intersect and form an angle of roughly 160 degrees below where a hole for suspension is drilled. The rope abrasion marks inside the hole indicate that the stone chime served long-term usage.[并不简单]
#互联网技术[超话]# 【美媒：天文学家捕捉到遥远星系的“心跳”】
据美国太空网站7月13日报道，天文学家发现了来自遥远星系的奇特且持久的无线电信号。这一发现可能帮助天文学家最终确定快速射电暴（FRB）的起源。FRB是来自数十亿光年外星系的强烈无线电波爆发现象，大多数FRB的持续时间仅为几毫秒，且为一次性事件。上述新信号——FRB 20191221A——持续时间长达3秒，是FRB平均持续时间的1000倍，且具有迄今发现的最明确的重复模式。
美国麻省理工学院卡弗里天体物理与空间研究所研究员达尼埃莱·米基利在一份声明中说：“这很不寻常。它不仅持续时间很长（约3秒），还出现了非常精确的周期性峰值，每几分之一秒就会发出信号——‘砰、砰、砰’——就像心跳一样。信号本身就是周期性的，这是第一次出现这种现象。”
发现这种强烈和重复的射电暴的团队成员包括来自加拿大氢强度测绘实验（CHIME）/FRB合作项目的研究人员。未来，研究人员将尝试捕捉来自同一来源的进一步爆发现象，这可能有助于更明确地揭示引发这些FRB的因素。
据美国太空网站7月13日报道，天文学家发现了来自遥远星系的奇特且持久的无线电信号。这一发现可能帮助天文学家最终确定快速射电暴（FRB）的起源。FRB是来自数十亿光年外星系的强烈无线电波爆发现象，大多数FRB的持续时间仅为几毫秒，且为一次性事件。上述新信号——FRB 20191221A——持续时间长达3秒，是FRB平均持续时间的1000倍，且具有迄今发现的最明确的重复模式。
美国麻省理工学院卡弗里天体物理与空间研究所研究员达尼埃莱·米基利在一份声明中说：“这很不寻常。它不仅持续时间很长（约3秒），还出现了非常精确的周期性峰值，每几分之一秒就会发出信号——‘砰、砰、砰’——就像心跳一样。信号本身就是周期性的，这是第一次出现这种现象。”
发现这种强烈和重复的射电暴的团队成员包括来自加拿大氢强度测绘实验（CHIME）/FRB合作项目的研究人员。未来，研究人员将尝试捕捉来自同一来源的进一步爆发现象，这可能有助于更明确地揭示引发这些FRB的因素。
#考考文博英语时刻# Stone chimes
As a crucial ritual and musical instrument of ancient China, the stone chime is one of the most representative symbols of Chinese civilization. Current archaeological data show that the stone chimes were already widely distributed in the Yellow River basin and along the Great Wall area in the north from the Longshan era, the formation period of Chinese civilization, to the Xia and Shang dynasties. So far, the prehistoric stone chimes discovered are all single, large-bodied “teqing,” among which the earliest and more concentratedly-yielded are the four chimes unearthed from the large tombs of early Taosi culture, invaluable for studying the origin and development of chimes and the sounding feature of early Chinese percussion instruments.
As a crucial ritual and musical instrument of ancient China, the stone chime is one of the most representative symbols of Chinese civilization. Current archaeological data show that the stone chimes were already widely distributed in the Yellow River basin and along the Great Wall area in the north from the Longshan era, the formation period of Chinese civilization, to the Xia and Shang dynasties. So far, the prehistoric stone chimes discovered are all single, large-bodied “teqing,” among which the earliest and more concentratedly-yielded are the four chimes unearthed from the large tombs of early Taosi culture, invaluable for studying the origin and development of chimes and the sounding feature of early Chinese percussion instruments.
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