Olee otú ịchọta n'elu ebe nke cube?

The cube nwere ọtụtụ nke na-akpali mgbakọ na mwepụ Njirimara na a maara na ndị mmadụ kemgbe oge ochie. Anọchitekwa anya nke ụfọdụ nke oge ochie Greek n'ụlọ akwụkwọ nke echiche na mbụ ahụ (atọm) na-eme ka anyị na ụwa, nwere a udi nke a cube, na mysticism na emume naanị ndị anabatara ọbụna na-efe a ọnụ ọgụgụ. Taa nnọchiteanya parascience otoro cube ịtụnanya ike Njirimara.

Cube - na ọ bụ a zuru okè ọnụ ọgụgụ, otu n'ime ise-akụzi si gbasaa solids. Akụzi si gbasaa ahu - ya kwesịrị ekwesị multi-faceted ọnụ ọgụgụ, na-eju afọ atọ ọnọdụ:

1. All ya n'ọnụ na ihu nke bụ na ya hà.

2. The akụkụ n'etiti ndị mejupụtara bụ (na akụkụ n'etiti cube ihu hà na 90 degrees).

3. All ọgụgụ gbasa n'elu elu nke okirikiri circumscribed gburugburu ya.

The kpọmkwem ego nke ndị a na ọnụ ọgụgụ a na-akpọ Greek mgbakọ na mwepụ Theaetetus nke Athens, na nwa nke Plato, Euclid na nke 13 n'akwụkwọ nke mmalite nyere ha a zuru ezu mgbakọ na mwepụ nkọwa.

Ndị Grik oge ochie na-ewekarị iji quantitative variables na-akọwa na Ọdịdị nke ụwa anyị, mmasị ka akụzi si gbasaa solids miri sacral pụtara. Ha kweere na onye ọ bụla nke na ọnụ ọgụgụ na-anọchite anya mmalite nke eluigwe na ala: tetrahedron - ọku cube - ụwa, octahedron - ikuku icosahedron - mmiri dodecahedron - ether. Akporo a kọwara ha gburugburu nọchiri okè, Chineke.

Ya mere, a cube, na-akpọ a hexahedron (Grik "hex" -. 6), - a atọ akụkụ mgbe geometric udi. Ọ na-akpọ mgbe quadrangular prism ma ọ bụ a akụkụ anọ parallelepiped.

A cube isii ihu, iri na abụọ n'ọnụ, na asatọ vertices. Na nke a na ọnụ ọgụgụ, i nwere ike tinye ndị ọzọ mgbe nile polyhedra: tetrahedron (tetrahedron na n'ọnụ n'ụdị triangles), na octahedron (octahedron) na icosahedron (icosahedron).

Cube diagonal a na-akpọ nke ejikọta abụọ symmetrical ikwu n'elu center. Ịmata cube ihu ogologo a, i nwere ike ịhụ na ogologo nke diagonal v: v = a ^3.

Na a cube, dị ka e kwuru n'elu, nwere ike dere okirikiri, na okirikiri nke e dere okirikiri (denoted r) bụ hà ọkara ọnu ogologo: r = (1/2) a.

Ọ bụrụ na akporo nke cube kọwara gburugburu, na okirikiri nke okirikiri (denoted R) bụ hà: R = (3/2) a.

Ezi ọsọ na ụlọ akwụkwọ nsogbu ajụjụ: otú gbakọọ ebe elu nke cube? Dị mfe, dị nnọọ anya nke uche a cube. The elu nke cube nwere isii ihu n'ụdị n'ámá. N'ihi ya, iji chọta n'elu ebe nke cube, ọ bụ nke mbụ dị mkpa iji chọta ebe nke onye nke ihu na-amụba ka ọnụ ọgụgụ ha: S _n = ^{2 6a.}

Dị nnọọ ka anyị hụrụ n'elu ebe nke cube, gbakọọ ebe nke ya mpụta ihu: S _b = 4a ^2.

Site na nke a usoro, o doro anya na ha abụọ na-abụghị ihu nke a cube - a isi, na ndị ọzọ na anọ - n'akụkụ elu.

Iji chọta n'elu ebe nke cube pụrụ ịbụ ụzọ ọzọ. Nyere eziokwu na cube - a ikiri, ị pụrụ iji echiche nke atọ gbasara ohere akụkụ. Nke a pụtara na cube, dị ka a atọ akụkụ ọnụ ọgụgụ nwere 3 parameters: ogologo (a) na obosara (b) na ịdị elu (c).

Iji ndị a kwa, anyị na-gbakọọ ngụkọta n'elu ebe nke cube: S _n = 2 (ab + akanamde + BC).

Gbakọọ ebe n'akụkụ elu nke cube, ndị perimeta nke isi mụbaa site elu: S _b = 2c (a + b).

Olu nke cube - bụ ngwaahịa nke atọ components - elu, obosara na ogologo:
V = Abc ma ọ bụ atọ n'akụkụ n'ọnụ: V = a ^3.