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1 天前 · 1st century AD: The aeolipile, a simple steam turbine is recorded by Hero of Alexandria. [263] 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.
1 天前 · Website. sdgs .un .org. The 2030 Agenda for Sustainable Development, adopted by all United Nations members in 2015, created 17 world Sustainable Development Goals ( SDGs ). They were created with the aim of " peace and prosperity for people and the planet..." [1] [2] [3] – while tackling climate change and working to preserve oceans and forests.
3 小時前 · The following notable deaths occurred in 2024. Names are reported under the date of death, in alphabetical order. A typical entry reports information in the following sequence: Name, age, country of citizenship at birth, subsequent nationality (if applicable), what subject was noted for, cause of death (if known), and reference.
1 天前 · In addition, the Romans claim their equivalent god, Vulcan, to have produced the following children: Cacus (Cacus was mentioned also as a child of Hephaestus) [75] Caeculus Symbolism Hephaestus and 2 assistants work on the arms for Achilles, the shield held up by Hephaestus and one of his assistants shows the mirror image of Thetis, sitting and watching the scene.
3 小時前 · Los Angeles County is one of the original counties of California, created at the time of statehood in 1850. [8] The county originally included parts of what are now Kern, San Bernardino, Riverside, Inyo, Tulare, Ventura, and Orange counties. In 1851 and 1852, Los Angeles County stretched from the coast to the state line of Nevada. [9]
3 小時前 · v. t. e. Mural depicting human rights in Turkey. The listed rights are: consumption rights, the right of a clean environment, the right to obtain information, the right to life, voting rights, the right to education, freedom of thought, right to health, equality, habeas corpus.
1 天前 · Four is the smallest composite number, its proper divisors being 1 and 2. [4] Four is the sum and product of two with itself: , the only non-zero number such that , which also makes four the smallest and only even squared prime number and hence the first squared prime of the form , where is a prime.
