Maybug hauv davhlau: lub dav hlau dav hlau uas tsis paub aerodynamics
Qhov pib ntawm tshav kub feem ntau yog cim los ntawm buzzing ntawm kab thiab ya ntawm ntau yam tsiaj nyob. May beetle sawv, thiab feem ntau nws tawm ntawm nws qhov chaw caij ntuj no thaum lub Plaub Hlis.
Txheem
Kev piav qhia ntawm Maybug
Maybug hauv davhlau.
Tus neeg sawv cev ntawm tsev neeg Coleoptera zoo li ntxim nyiam heev. Khrushch loj, lub cev ntawm noble xim av los yog burgundy ntxoov thiab them nrog plaub hau.
Gardeners thiab gardeners tsis nyiam hom kab no. Qhov tseeb yog qhov ntawd larvae noj ib tug lossis loj npaum li cas ntawm cov hauv paus hniav thiab cov cag qoob loo. Tsis muaj kab lis kev cai uas tus larva voracious yuav tsis kam. Cov ntoo deciduous, nrog rau cov ntoo txiv ntoo, tsob ntoo thiab zaub muaj kev pheej hmoo.
Tej kab nrib pleb
Zoo li tag nrho cov kab, cov qauv ntawm cov kab yog raug. Nws muaj peb ntu, ntu: lub taub hau, hauv siab thiab plab. Lawv muaj peb ob txhais ceg, elytra thiab ib khub tis. Lub elytra txuas los ntawm saum toj no mus rau qhov thib ob thoracic ntu. Flying tis yog pob tshab thiab nyias - los ntawm peb.
Tab sis txawm qhov no, cockchafer ya. Txawm tias nws ua rau nws clumsy thiab nyuaj.
Thaum lub beetle ya
Chafer.
Lub davhlau ntawm Khrushchev yog qhov kev kawm thiab txawm tias kev kawm tshwj xeeb. Txhawm rau ya, raws li cov cai ntawm physics thiab aerodynamics, nws thaj tsam tis yuav tsum loj dua nyob rau hauv kev sib raug zoo nrog lub cev hnyav. Qhov no yog hu ua lift coefficient.
Ntawm no, nyob rau hauv cov nqe lus ntawm qhov luaj li cas ntawm cov kab, nws yog tsawg tshaj li 1, txawm hais tias ib tug tsawg kawg nkaus ntawm 2 yuav tsum tau rau lub davhlau, nrog ib tug luj ntawm 0,9 g. Tag nrho cov ntaub ntawv qhia hais tias lub davhlau ntawm beetle yog tsis yooj yim sua.
Cov kws tshawb fawb tau pom tias tus cockchafer tuaj yeem tsim kev nqa hauv txoj kev tsis tau tshawb nrhiav.
Cas lub cockchafer ya
Nrog rau tag nrho cov pom tseeb impossibility los ntawm qhov pom ntawm kev tshawb fawb, Khrushchev tuaj yeem ya 20 mais hauv ib hnub. Qhov siab tshaj plaws davhlau ceev yuav yog 2-3 meters ib ob. Sab hnub poob cockchafer tuaj yeem ya mus txog qhov siab ntawm 100 meters.
Maybug ua ntej davhlau: "inflates" lub plab thiab qhib tis.
May beetle pib nws lub davhlau los ntawm inflating nws plab. Tsis tas li ntawd nws:
- Ua kom lub zog ntawm lub tis qis, yog li ua kom lub lifting thiab thawb lub zog.
- Lub sijhawm no, huab cua yog nqus hauv qhov chaw nruab nrab ntawm elytron thiab tis.
- Ntawm qhov chaw qis tshaj, hu ua qhov point tuag, lub tis ua rau U-tig.
- Thiab thaum tus kab lifts nws tis nce, nws sai sai displaces huab cua los ntawm qhov chaw nyob rau hauv lub tis.
- Qhov no ua rau lub dav hlau ntawm huab cua diverges ntawm lub kaum sab xis rov qab, tab sis tib lub sij hawm downwards.
Nws hloov tawm hais tias nrog txoj kev no ntawm kev siv tis, cov kab siv ob lub davhlau technologies - flapping thiab dav hlau. Nyob rau tib lub sijhawm, kab nws tus kheej tsis nkag siab dab tsi hauv physics.
Nthuav tias ib tug bumblebee, raws li txoj cai ntawm aerodynamics, kuj tsis tuaj yeem ya. Tab sis nyob rau hauv kev xyaum, nws nquag txav.
Nthuav lus tseeb txog lub davhlau ntawm lub cockchafer
Ntxiv nrog rau qhov nrawm nrawm thiab qhov siab zoo tshaj plaws uas Maybugs tuaj yeem nce siab, kuj tseem muaj qhov tseeb qhov tseeb uas cuam tshuam nrog superpowers.
Khrushchev tsuas yog seemingly clumsy. Nws ua rau 46 tis txav hauv ib thib ob ntawm nws lub davhlau.
Lub beetle nyiam ultraviolet. Nws yoov thiab tsaug zog thaum sawv ntxov ua ntej hnub tuaj thiab yav tsaus ntuj tom qab hnub poob. Thaum nruab hnub, thaum lub ntuj ntshiab thiab xiav, nws so.
Lub beetle muaj ib tug built-in navigator thiab yog zoo oriented nyob rau hauv lub cheeb tsam. Nws yog kom meej meej oriented nyob rau hauv cov kev taw qhia ntawm lub davhlau. Tus tsiaj yuav rov qab mus rau nws hav zoov yog tias nws raug tshem tawm ntawm qhov ntawd.
Raws li qhov sib nqus ntawm lub ntiaj teb, tus tsiaj yog taw qhia. Nws so tsuas yog nyob rau hauv kev coj ntawm sab qaum teb mus rau sab qab teb lossis sab hnub poob mus rau sab hnub tuaj.
xaus
Qhov txawv txav airship-helicopter Maybug ua txhaum txoj cai ntawm aerodynamics. Nws tsis tuaj yeem ya raws li cov kws tshawb fawb, tab sis thaj tsis paub qhov no.
Siv nws cov tis, nrog rau qee qhov kev dag ntxias, Maybug ya zoo, taug kev deb thiab feem ntau rov qab mus rau nws lub tebchaws.
Yav dhau los