type: "html5", Retrieved on 3 March 2019 at, British and Commonwealth English spelling, 2019–20 coronavirus pandemic related shortages, http://ilovediving.ru/articles/maski-polumaski-ochki-dykhatelnye-trubki-lasty, http://www.skindivinghistory.com/mfg_retailers/u/US_Divers/43.html, "Full-Face Snorkeling Masks: Pros And Cons", https://www.letsgotomaui.net/da-kine/full-face-snorkel-mask-dangers/, https://www.cbsnews.com/news/hawaii-full-face-snorkel-mask-related-deaths/, Opoczynski, David (23 March 2020). { bidder: 'ix', params: { siteId: '195465', size: [300, 250] }}, As a consequence, several participative sciences programs have been developed, supported by geo-localization and identification web sites, along with protocols for auto-organization and self-teaching aimed at biodiversity-interested snorkelers, in order for them to turn their observations into sound scientific data, available for research. It eventually loses its flexibility, becomes brittle and cracks, which can cause clearing valves to stick in the open or closed position, and float valves to leak due to a failure of the valve seat to seal. Few locations demarcate small craft areas from snorkeling areas, unlike that done for regular beach-bathers, with areas marked by buoys. name: "unifiedId", iasLog("exclusion label : resp"); The first snorkel to be patented in 1938 was front-mounted, worn with the tube over the front of the face and secured with a bracket to the diving mask. ga('set', 'dimension2', "entryex"); bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776140', position: 'atf' }}, googletag.cmd = googletag.cmd || []; var mapping_leftslot = googletag.sizeMapping().addSize([1063, 0], [[120, 600], [160, 600], [300, 600]]).addSize([963, 0], [[120, 600], [160, 600]]).addSize([0, 0], []).build(); You can create your own lists to words based on topics. {code: 'ad_topslot_a', pubstack: { adUnitName: 'cdo_topslot', adUnitPath: '/2863368/topslot' }, mediaTypes: { banner: { sizes: [[300, 50], [320, 50], [320, 100]] } }, { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot2_flex' }}, { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_rightslot' }}, type: "html5", { bidder: 'ix', params: { siteId: '194852', size: [300, 250] }}, 'max': 3, It is the basis of the two surface disciplines of the underwater sport of finswimming.[1]. { bidder: 'openx', params: { unit: '541042770', delDomain: 'idm-d.openx.net' }}, An integrated snorkel consists essentially of a tube topped with a shut-off valve and opening at the bottom into the interior of a diving mask. tub respirador, bussejar amb tub (respirador)…, سنوركل (أُنبوب للتنفّس أثناء الغَطس), يَتنَفَّس تَحت الماء بالأنْبوب…, tubo de respiração, nadar usando tubo de respiração…, boccaglio, nuotare con boccaglio (e maschera), snorkel…, дыхательная трубка (для подводного плавания)…, tubo de buceo, bucear con tubo, tubo de respiración…. The full face mask has a double airflow valve which allows breathing through the nose in addition to the mouth. "Coronavirus : quand les inventeurs viennent à la rescousse des hôpitaux". 'max': 36, { bidder: 'onemobile', params: { dcn: '8a9690ab01717182962182bb50ce0007', pos: 'cdo_topslot_mobile_flex' }}, The barrel is the hollow tube leading from the supply end at the top of the snorkel to the mouthpiece at the bottom. 'min': 8.50, In cooler waters, a wetsuit may also be worn. bids: [{ bidder: 'rubicon', params: { accountId: '17282', siteId: '162036', zoneId: '776160', position: 'atf' }}, A special valve located on the bottom of the chin allows to drain the water out. { bidder: 'ix', params: { siteId: '195464', size: [160, 600] }}, pbjsCfg = { { bidder: 'triplelift', params: { inventoryCode: 'Cambridge_SR' }}, { bidder: 'criteo', params: { networkId: 7100, publisherSubId: 'cdo_btmslot' }}, These examples are from corpora and from sources on the web.