The world's largest coalfield - the Appalachian coalfield - is remarkable for its huge reserves and important position. This coal field is located in the Appalachian Mountains of the northeastern United States, with an area of 179700 square kilometers, equivalent to a medium-sized province...

12thManufactured with special steel materials developed by Daye Special SteelMain bearing of shield tunneling machine with a diameter of 8.61 metersOffline in ChangshaMain bearing of shield tunneling machine with a diameter of 8...

This year's "Olympic Games of the Aerospace Industry" - the 74th International Astronautical Congress was held in early October in Baku, the capital of Azerbaijan. More than 5400 top aerospace scientists, entrepreneurs, and enthusiasts from 132 countries gathered together, making it the most diverse international aerospace conference in history...

Science and Technology Daily reporter Liu XiaAustralian scientists have conducted the largest lighting study to date, with a survey of 87000 participants found that exposure to more light at night increases the risk of mental illnesses such as anxiety, bipolar disorder, and post-traumatic stress disorder, as well as self harm. The study also found that exposure to more light during the day can serve as a non pharmacological means to reduce the risk of mental illness...

The 2023 China Semiconductor Materials Industry Development (Texas) Summit will be held grandly on October 16th. On October 13th, Dezhou City held a press conference, inviting Zhu Kaiguo, Deputy Secretary of the Communist Party of China Dezhou Municipal Committee and Mayor, Chen Xiaoqiang, Deputy Mayor of Dezhou City, Qi Xiaoqing, Member of the Standing Committee of the Municipal Party Committee and Secretary of the Party Working Committee of Tianqu New Area, Wang Dashan, Deputy Secretary of the Party Working Committee and Director of the Management Committee of Tianqu New Area, Yan Zhirui, General Manager of Shandong Youyan Aisi Semiconductor Materials Co...

Shen Yan CaseThe article was originally created and published by the headline of the Shen Yan case. Please do not plagiarize or reprint itThe 2023 Hangzhou Asian Games has come to an end, and the new technologies exhibited by China at this Asian Games have also left foreign friends stunned...

Speaking of weatherWe have long been accustomed to seasonal changes and climate changeAnd keep an eye on the weather forecastSo, beyond EarthAre there also "weather changes" in the space environmentAstronauts in spaceShould we also pay attention to the "weather forecast"The answer is: they also need to watch the weather forecast!There is both "wind" and "rain"How do they affect space activities?The advantage of watching the weather forecast isHow to make space weather forecasts?thereforeAstronauts in spaceJust like everyone in front of the screenAlso pay attention to space weather forecastingUsing this as a referenceArrange one's own work(Our Space)...

Ladies and gentlemen, click on 'Follow' in the upper right corner, which not only facilitates your discussion and sharing, but also brings you a different sense of participation. Thank you for your support!Luozhan Railway: Rusty Railway or Air Pulling Railway? The Luozhan Railway is jokingly referred to by many as a rusty railway, and some netizens even refer to it as a railway that pulls air...

China Youth Daily Client News (Gu Xuejinsheng, China Youth Daily, China Youth Network reporter Meng Peipei) On October 12, "Sun Wukong", who is over 2 meters tall, appeared at the exhibition halls of universities and research institutions at the 2023 World Navigation Equipment Conference and World Navigation Equipment Expo, attracting many visitors to stop.This is the "Wukong" unmanned underwater vehicle developed by Harbin Engineering University...

The 2023 World Navigation Equipment Conference is currently taking place in Fuzhou. As an important component of the conference, the New Era Ten Year Achievement Exhibition, with the theme of "Ten Years of Hardening and Pursuing Deep Blue Dreams," showcases the significant and outstanding achievements China has made in the field of navigation equipment over the past decade, and a group of "major powers and important weapons" have made a concentrated appearance...

The 134th Canton Fair will be held in three phases in Guangzhou from October 15th to November 4th, with regular operation of online platforms. At present, the preparatory work for this year's Canton Fair is progressing smoothly...

Beijing Daily Client | Reporter Sun JieAccelerate the construction of a manufacturing powerhouse, what are high-end equipment enterprises for? On October 13th, the 2023 High end Instrument and Meter Innovation and Development Forum was held in Beijing. More than 270 academicians, industry experts, and business representatives focused on the opportunities and challenges faced by Chinese enterprises, conducting in-depth exchanges on topics such as the development of high-end instrument technology and high-quality manufacturing industry, and jointly exploring new paths for the integrated development of high-end, green, and intelligent industries...