{"type":"standard","title":"Longitudinal wave","displaytitle":"Longitudinal wave","namespace":{"id":0,"text":""},"wikibase_item":"Q626707","titles":{"canonical":"Longitudinal_wave","normalized":"Longitudinal wave","display":"Longitudinal wave"},"pageid":144940,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/6/62/Onde_compression_impulsion_1d_30_petit.gif","width":305,"height":231},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/6/62/Onde_compression_impulsion_1d_30_petit.gif","width":305,"height":231},"lang":"en","dir":"ltr","revision":"1292358496","tid":"5e6f6c38-3a45-11f0-a7ac-efc4896314ef","timestamp":"2025-05-26T15:23:26Z","description":"Type of wave","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Longitudinal_wave","revisions":"https://en.wikipedia.org/wiki/Longitudinal_wave?action=history","edit":"https://en.wikipedia.org/wiki/Longitudinal_wave?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Longitudinal_wave"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Longitudinal_wave","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Longitudinal_wave","edit":"https://en.m.wikipedia.org/wiki/Longitudinal_wave?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Longitudinal_wave"}},"extract":"Longitudinal waves are waves which oscillate in the direction which is parallel to the direction in which the wave travels and displacement of the medium is in the same direction of the wave propagation. Mechanical longitudinal waves are also called compressional or compression waves, because they produce compression and rarefaction when travelling through a medium, and pressure waves, because they produce increases and decreases in pressure. A wave along the length of a stretched Slinky toy, where the distance between coils increases and decreases, is a good visualization. Real-world examples include sound waves and seismic P waves.","extract_html":"
Longitudinal waves are waves which oscillate in the direction which is parallel to the direction in which the wave travels and displacement of the medium is in the same direction of the wave propagation. Mechanical longitudinal waves are also called compressional or compression waves, because they produce compression and rarefaction when travelling through a medium, and pressure waves, because they produce increases and decreases in pressure. A wave along the length of a stretched Slinky toy, where the distance between coils increases and decreases, is a good visualization. Real-world examples include sound waves and seismic P waves.
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{"type":"general","setup":"Why do bananas have to put on sunscreen before they go to the beach?","punchline":"Because they might peel!","id":340}
{"type":"standard","title":"Alstroemeria revoluta","displaytitle":"Alstroemeria revoluta","namespace":{"id":0,"text":""},"wikibase_item":"Q15538183","titles":{"canonical":"Alstroemeria_revoluta","normalized":"Alstroemeria revoluta","display":"Alstroemeria revoluta"},"pageid":75022393,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/6/60/Alstroemeria_revoluta_imported_from_iNaturalist_photo_128106564_on_10_October_2023.jpg/330px-Alstroemeria_revoluta_imported_from_iNaturalist_photo_128106564_on_10_October_2023.jpg","width":320,"height":240},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/6/60/Alstroemeria_revoluta_imported_from_iNaturalist_photo_128106564_on_10_October_2023.jpg","width":2048,"height":1536},"lang":"en","dir":"ltr","revision":"1267544873","tid":"12995429-cb82-11ef-bff8-9fb9debc90e2","timestamp":"2025-01-05T16:28:19Z","description":"Species of plant","description_source":"local","content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Alstroemeria_revoluta","revisions":"https://en.wikipedia.org/wiki/Alstroemeria_revoluta?action=history","edit":"https://en.wikipedia.org/wiki/Alstroemeria_revoluta?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Alstroemeria_revoluta"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Alstroemeria_revoluta","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Alstroemeria_revoluta","edit":"https://en.m.wikipedia.org/wiki/Alstroemeria_revoluta?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Alstroemeria_revoluta"}},"extract":"Alstroemeria revoluta is a species of plant in the family Alstroemeriaceae. It is a perennial herb endemic to Chile, where it is distributed between the Valparaíso and Araucanía regions.","extract_html":"
Alstroemeria revoluta is a species of plant in the family Alstroemeriaceae. It is a perennial herb endemic to Chile, where it is distributed between the Valparaíso and Araucanía regions.
"}{"type":"standard","title":"Friendship Mound","displaytitle":"Friendship Mound","namespace":{"id":0,"text":""},"wikibase_item":"Q30623971","titles":{"canonical":"Friendship_Mound","normalized":"Friendship Mound","display":"Friendship Mound"},"pageid":54047117,"thumbnail":{"source":"https://upload.wikimedia.org/wikipedia/commons/thumb/2/23/Friendshipmound.JPG/330px-Friendshipmound.JPG","width":320,"height":240},"originalimage":{"source":"https://upload.wikimedia.org/wikipedia/commons/2/23/Friendshipmound.JPG","width":1280,"height":960},"lang":"en","dir":"ltr","revision":"1278050394","tid":"79d9ef87-f596-11ef-a8ea-23fa5970ecc7","timestamp":"2025-02-28T05:40:11Z","description":"Mound in Adams County, Wisconsin, US","description_source":"local","coordinates":{"lat":43.9838,"lon":-89.8171},"content_urls":{"desktop":{"page":"https://en.wikipedia.org/wiki/Friendship_Mound","revisions":"https://en.wikipedia.org/wiki/Friendship_Mound?action=history","edit":"https://en.wikipedia.org/wiki/Friendship_Mound?action=edit","talk":"https://en.wikipedia.org/wiki/Talk:Friendship_Mound"},"mobile":{"page":"https://en.m.wikipedia.org/wiki/Friendship_Mound","revisions":"https://en.m.wikipedia.org/wiki/Special:History/Friendship_Mound","edit":"https://en.m.wikipedia.org/wiki/Friendship_Mound?action=edit","talk":"https://en.m.wikipedia.org/wiki/Talk:Friendship_Mound"}},"extract":"Friendship Mound is a castellated mound, located just north of the village of Friendship, Adams County, in the U.S.