Kilogalamu imapangidwa mu silinda, ndizofunikira kwambiri ndipo tsopano zaka zapitazo amasungidwa m'mabusa a Paris. Ili pa vauo mu chipolopolo chapadera.
Pakatikati pa Novembala 2019, pamsonkhano wadziko lapansi la World Bureau wa miyeso ndi masikelo, akatswiri asankha kuyikanso m'malo othandiza kwambiri.
Muyezo uli ndi mawonekedwe a cylindrical okhala ndi mainchesi ndi kutalika kwa 39 mm, 90% imakhala ndi platinamu, komanso 10% kuchokera ku Iridium. Zili ndi iye kuti ma viscos onse amayerekezedwa ndi dziko lapansi. Ali ndi makope omwe ali padziko lonse lapansi m'mabungwe aboma. Tsopano gawo limodzi lokha ndi lokhalo m'dongosolo la zinthu zapadziko lonse lapansi, lomwe limatengedwa kuchokera pamutu womwe munthu adapangidwa ndi munthuyo. Magawo ena a dongosolo lino amatha kupezeka pogwiritsa ntchito malamulo a sayansi. Koma sizotalikirapo.
Choyambitsa ichi chinali kuchepa kwa kilogalamu ya kilogalamu, chifukwa cha omwe ali. Tsopano kuti ndikofanana ndi makope ena a kilogalamu (izi zimapangitsa zaka 40 zilizonse), zotsatira zake zimakhala zosiyana. Izi zitha kubweretsa mavuto akulu m'makampani, komwe muyeso woyenera kulondola ndikofunikira kwambiri.
Pali njira yomwe imadziwika ndi kulondola kwakukulu. Mu 1975, Dryan Kibble waku Britain, wotchedwa "Vetta-Ssince" mu 1975. Imagona poti mphamvu ya mphamvu yamagetsi imayeza, yomwe imatha kuyerekezedwa ndi kulondola kwakukulu. Izi zimafunikira zida zowopsa kwambiri komanso zodula. Pazida za labotale, ndalama zambiri zofunika, koma kusintha kwamakono kumathandizira kupeza maziko a Metroological mosalekeza.
Nkhani pamutu: Kumasulidwa kwa mipando - gawo latsopano la Vipple