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Hace 3 días · Mineral. Crystals of serandite, natrolite, analcime, and aegirine from Mont Saint-Hilaire, Quebec, Canada. In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.
Hace 2 días · María Catalina Echevarría nació en Rosario en 1788. Quedó huérfana de pequeña y fue adoptada por Pedro Tuella, amigo de sus padres. Su hermano, Vicente Anastasio, varios años mayor, fue un abogado que acompañó fervientemente la lucha por la Independencia y muy cercano al general Manuel Belgrano.
Hace 2 días · Etymology. Until the 16th century, sharks were known to mariners as "sea dogs". This is still evidential in several species termed "dogfish," or the porbeagle.The etymology of the word shark is uncertain, the most likely etymology states that the original sense of the word was that of "predator, one who preys on others" from the Dutch schurk, meaning 'villain, scoundrel' (cf. card shark, loan ...
24 de may. de 2024 · Website. calstate .edu. The California State University ( Cal State or CSU) is a public university system in California, and the largest public university system in the United States. [1] It consists of 23 campuses and seven off-campus centers, which together enroll 457,992 students and employ 56,256 faculty and staff members. [1]
15 de may. de 2024 · Katoomba Cascades is a small waterfall on the Kedumba River, a 20km long perennial river which rises at Lake Catalina in Katoomba. This river starts as a small creek flowing through parkland west of the Katoomba town centre, before it drops into the Jamison Valley via Katoomba Falls, one of the most impressive waterfalls in the Blue Mountains ...
Hace 2 días · A speaker of Catalan (Majorcan dialect). Artur Mas, former president of Catalonia, discussing individual identity, collective identity and language.. Catalan (/ ˈ k æ t ə l ə n,-æ n / KAT-ə-lən, -lan or / ˌ k æ t ə ˈ l æ n / KAT-ə-LAN; autonym: català, Eastern Catalan:), known in the Valencian Community and Carche as Valencian (autonym: valencià), is a Western Romance language.
Hace 3 días · Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be molded, extruded or pressed into solid objects of various shapes. This adaptability, plus a wide range of other properties, such as being lightweight, durable, flexible, and inexpensive ...
