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4 days ago · 1st century AD: The first use of respiratory protective equipment is documented by Pliny the Elder (c. 23 AD –79) using animal bladder skins to protect workers in Roman mines from red lead oxide dust. 1st century AD: Vending machines invented by Hero of Alexandria. By the 1st century AD: The double-entry bookkeeping system in the Roman Empire.
- Fritz Strassmann
Friedrich Wilhelm Strassmann (German: [fʁɪt͡s ˈʃtʁasˌman] ⓘ;...
- Timeline of Electrical and Electronic Engineering
Year Event 600 BC: Ancient Greek philosopher Thales of...
- Timeline of Computing
Timeline of computing presents events in the history of...
- Fritz Strassmann
2 days ago · WikiLeaks and Chelsea Manning. In 2010 WikiLeaks posted a flurry of documents—almost half a million in total—relating to the U.S. wars in Iraq and Afghanistan.While much of the information was already in the public domain, the administration of U.S. Pres. Barack Obama criticized the leaks as a threat to U.S. national security.
- What is WikiLeaks?WikiLeaks is a media organization and website that functions as a clearinghouse for classified or otherwise privileged information.
- Who founded WikiLeaks?WikiLeaks was founded by Australian computer programmer and activist Julian Assange in 2006. Assange was inspired to create WikiLeaks by Daniel Ell...
- What was the first publication on WikiLeaks?The first document posted to the WikiLeaks website, in December 2006, was a message from a Somali rebel leader encouraging the use of hired gunmen...
1 day ago · e. The iPad is a brand of iOS and iPadOS -based tablet computers that are developed by Apple, first introduced on January 27, 2010. The iPad range consists of the original iPad lineup and the flagship products iPad Mini, iPad Air, and iPad Pro . The iPhone's iOS operating system (OS) was initially used for the iPad but in September 2019, its OS ...
1 day ago · The history of China spans several millennia across a wide geographical area. Each region now considered part of the Chinese world has experienced periods of unity, fracture, prosperity, and strife. Chinese civilization first emerged in the Yellow River valley, which along with the Yangtze basin constitutes the geographic core of the Chinese ...
5 days ago · Historical earthquakes is a list of significant earthquakes known to have occurred prior to the early 20th century. As the events listed here occurred before routine instrumental recordings, they rely mainly on the analysis of written sources, observations of shaking objects and/or animal behavior during earthquakes and religious/traditional beliefs about earthquakes such as "God's punishment".
1 day ago · Salah ad-Din Yusuf ibn Ayyub [a] ( c. 1137 – 4 March 1193), commonly known as Saladin, [b] was the founder of the Ayyubid dynasty. Hailing from a Kurdish family, he was the first sultan of both Egypt and Syria. An important figure of the Third Crusade, he spearheaded the Muslim military effort against the Crusader states in the Levant.
1 day ago · A 2013 survey of 17,000 young people in six countries found that one in ten people aged 16 to 34 claimed to have been rejected for a job because of social media activity. Social media services have been reported to affect deception in resumes. While these services do not affect deception frequency, it does increase deception about interests and ...
