Lub teardrop zoo li cas hu ua?
Lub teardrop zoo li cas hu ua?

Video: Lub teardrop zoo li cas hu ua?

Video: Lub teardrop zoo li cas hu ua?
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Dej- zoo li tus moldavites, qee zaum kuj hu ua teardrops, belongs rau feem ntau nrov cov duab.

Ua li no, lub teardrop zoo li cas?

Lawv tuaj yeem jiggle ib ncig me ntsis thiab ntau dua oval zoo li tus qee zaum, tab sis lawv tsis yog zoo li tus zoo li a kua muag . Qhov no classic teardrop puab los ntawm cov dej ntws tawm ntawm tus kais dej (los yog tawm ntawm nplooj ntoo, los yog tawm ntawm lub taub dej). Thaum cov dej txhim kho nws hnyav dua thiab hnyav dua.

Ib yam li ntawd, dab tsi yog qhov tshwj xeeb tshaj plaws? 12 Cov duab uas koj tsis paub muaj npe

  1. Balbis. Qhov zoo tshaj plaws-paub piv txwv ntawm cov duab no yog tsab ntawv loj H.
  2. Squircle. ThinkStock.
  3. Heptagram. ThinkStock.
  4. Triquetra. Wikimedia Commons.
  5. Lub hnub qub ntawm Lakshmi. ThinkStock.
  6. Lemniscate. ThinkStock.
  7. Vesica Piscis. Wikimedia Commons.
  8. Chaw ntau pob. Wikimedia Commons.

Ib yam li ntawd, vim li cas lub teardrop yog qhov zoo tshaj plaws aerodynamic?

Rau speeds qis tshaj qhov ceev ntawm lub suab, lub feem ntau aerodynamically npaum puab yog cov kua muag . Cov kua muag muaj lub qhov ntswg sib npaug uas tapers thaum nws txav rov qab, ua ib qho nqaim, tsis tau sib npaug, uas maj mam nqa cov huab cua nyob ib ncig ntawm cov khoom rov qab ua ke es tsis txhob tsim cov eddy tam sim no.

Lub npe L yog dab tsi?

tus L puab yuav yog hexagon li kuv xav tias nws muaj 6 sab thiab lwm yam puab suab zoo li nws muaj 8 sab ces yog octogan - tsis muaj teeb meem yog tias koj xav tias lawv zoo li tsis muaj hexagon lossis octagon nws yog tus naj npawb ntawm sab uas koj suav - tsis meej pem, kuv paub.

Pom zoo: