Movement technology ntawm "ntsuab glacial nas"

2024 Tus sau: Seth Attwood | [email protected]. Kawg hloov kho: 2023-12-16 16:06

Zoo li txhua qhov chaw koj mus, koj tsis tuaj yeem khiav cov nas. Thiab tsis tsuas yog ib txwm sawv daws yuav, uas koj txhua tus paub, tab sis kuj heev mysterious thiab tsis zoo kawm, uas confuse zaum.

Lawv nyob ntawm cov dej khov nab kuab hauv Alaska, qhov chaw uas cov kws tshawb fawb nrhiav cov kab mob microbes (ntev xav tias tsuas yog cov kab mob uas muaj sia nyob uas tuaj yeem muaj sia nyob hauv cov xwm txheej hnyav) - pom cov dej khov npog nrog me me ntsuab "nas" txav ntawm cov dej khov.

Cov kws tshawb fawb kuj raug ntaus los ntawm qhov tseeb tias "cov nas ntsuab" tau txav mus rau hauv kev tsim

- Puas yog Ntiaj Teb lossis Mars? Puas yog lawv npaj kev ntxeem tau? Qhov no yog dab tsi?

Qhov ntawd yog thawj zaug tshwm sim ntawm University of Idaho glaciologist Tim Bartholomaus, tus kws sau ntawv ntawm txoj kev tshawb fawb tshiab tsis ntev los no tau tshaj tawm hauv phau ntawv xov xwm Polar Biology.

Nws tau hais txog hnub xyoo 2006 thaum nws tuaj txog ntawm thaj chaw hauv paus txawm nyob ze ntawm lub nroog mining qub ntawm Kennicot-McCarthy, Alaska.

Qhov uas Bartholomew ntsib yog ntau pua tus nas-loj fluffy ntsuab qe npog hauv dej khov.

Nws bravely kov ib tug ntawm lawv thiab pom tias nws yog ib tug mos mos, mosy clod ntawm av nkos.

Pom qhov tsis muaj ntaub ntawv hais txog qhov nws yuav ua li cas, Bartholomew hu lawv "glacial nas" thiab txiav txim siab los kawm lawv.

Thawj qhov uas nws tau pom yog tias cov nas tsuag glacial tau npog hauv ntau hom moss.

Txawm li cas los xij, qhov thib ob yog qhov ua rau kev kawm rau xyoo.

“ Lawv zoo li cov tsiaj me me, nas me, lossis chipmunks, lossis nas, lossis txawm li cas los xij, khiav ntawm lub qhov dej khov, txawm tias lawv pom tseeb khiav qeeb heev.”

Kev tshawb fawb co-sau thiab tus kws tshawb fawb tsiaj qus Sophie Gilbert tau hais tias lawv pom cov pob nyob hauv qhov chaw sib txawv me ntsis txhua hnub.

Piv txwv tias yog vim li cas yog ib yam dab tsi zoo li cua thawb lub tumbleweeds, lawv nqes mus thiab txuas ib lub voj nyias ntawm cov hlau rau lawv, strung nrog txheeb xyuas cov hlaws nyob ib ncig ntawm 30 ntawm lawv.

Qhov no yog xyoo 2009. Lawv ntsuas kev txav mus rau 54 hnub, tom qab ntawd tawm mus thiab rov qab los rau xyoo 2010, 2011 thiab 2012 thiab ntsuas lawv dua. Cov kws tshawb fawb pom tias cov nas glacial yog heev siab tawv … Thiab lawv tau kuj ceeb tias zoo npaj.

"Peb pom tias cov pob txha mos mos txav qhov nruab nrab ntawm 2.5 cm ib hnub nyob rau hauv ib pab tsiaj, thawj sab qab teb thiab sab qab teb sab hnub poob, thiab lawv txoj kev txav tau zoo sib xws nrog cov dej khov ablation

Kuj ceeb tias, qhov tseem ceeb ntawm kev txav ntawm lub pob moss tsis sib haum nrog cov kev taw qhia tseem ceeb ntawm cov cua los yog txoj kab nqes, lossis cov kev taw qhia tseem ceeb ntawm hnub ci hluav taws xob.

Tom qab ncav cuag qhov loj me, cov pob zeb glacial moss "nyob" tau ntau xyoo, tej zaum tshaj 6 xyoo.”

Bartholomew hais li ntawd qhov kev txav no zoo li lub tsev kawm ntawv ntawm ntses lossis ib pab pawg ntawm cov noog thiab tawm tsam qhov kev piav qhia ib txwm muaj.

Nrog sijhawm lawv txawm hloov cov kev taw qhia thiab ceev.

Qhov tsuas yog qhov koj tuaj yeem paub tseeb yog tias cov nas dej khov uas yuav tsum tau txav mus los kom cov moss ntawm lawv lub plab kom tau txais hnub ci.

Tej zaum kev txav mus los thiab kev loj hlob ntawm moss yog qhov tsim nyog txhawm rau txhawm rau pub rau lawv plab hnyuv microbes.