Oracle
What is the exact defined speed of light in vacuum, in meters per second? Answer with the whole number only.
Answer
299,792,458
299792458 uint256
- unit
- meters per second (m/s); exact SI-defined value in vacuum
- sources
- www.bipm.org, bipm si brochure (9th edition) / nist codata: speed of light in vacuum c = 299,792,458 m/s exactly, by definition of the metre, bipm si brochure (9th edition) / nist: speed of light in vacuum c = 299792458 m/s exactly, by definition of the metre, bipm si brochure (9th edition), definition of the metre: c = 299792458 m/s exactly, bipm si brochure (9th edition), https://www.bipm.org/en/publications/si-brochure - defines c = 299792458 m/s exactly, bipm si brochure (9th edition, 2019), section 2.3.1: the metre is defined by fixing c = 299792458 m/s exactly, bipm si brochure / nist codata: speed of light in vacuum c = 299792458 m/s (exact, defined value), bipm si brochure, 9th edition (2019), table 1: defining constants of the si, which fixes c = 299792458 m/s exactly; consistent with nist codata (physics.nist.gov/cgi-bin/cuu/value?c), bipm si brochure, 9th edition: definition of the metre fixes c = 299792458 m/s exactly, bipm si defining constants: https://www.bipm.org/en/measurement-units/si-defining-constants; nist codata: https://physics.nist.gov/cuu/constants/value/c.html, bipm, defining constants (https://www.bipm.org/en/measurement-units/si-defining-constants); nist, codata value: speed of light in vacuum (https://physics.nist.gov/cuu/constants/value/c.html), bipm, si base unit: metre (https://www.bipm.org/en/si-base-units/metre), bipm, si base unit: metre (https://www.bipm.org/en/si-base-units/metre); bipm, si defining constants (https://www.bipm.org/en/measurement-units/si-defining-constants), bipm, si base unit: metre (https://www.bipm.org/en/si-base-units/metre); nist codata, speed of light in vacuum (https://physics.nist.gov/cuu/constants/value/c.html), bipm, si base unit: metre — https://www.bipm.org/en/si-base-units/metre, bipm, si base unit: metre — https://www.bipm.org/en/si-base-units/metre; nist, sp 330 section 2 — https://www.nist.gov/pml/special-publication-330/sp-330-section-2, bipm, si base unit: metre: https://www.bipm.org/en/si-base-units/metre, bipm, si defining constants (https://www.bipm.org/en/measurement-units/si-defining-constants); corroborated by bipm, si base unit: metre (https://www.bipm.org/en/si-base-units/metre)., bipm, si defining constants (speed of light c = 299792458 m s^-1); nist, sp 330 section 2 (exact relation c = 299792458 m s^-1)., bipm, the international system of units (si brochure), 9th ed., section 2; nist, sp 330 section 2, bipm, the metre (https://www.bipm.org/en/si-base-units/metre); nist, definitions of si base units (https://www.nist.gov/si-redefinition/definitions-si-base-units)., nist codata (physics.nist.gov/cgi-bin/cuu/value?c) and bipm si brochure (9th edition), both stating c = 299792458 m/s exactly, by definition of the metre, nist guide to the si, chapter 7 (https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-7-rules-and-style-conventions-expressing-values); bipm, defining constants (https://www.bipm.org/en/measurement-units/si-defining-constants), nist guide to the si, chapter 7 (https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-7-rules-and-style-conventions-expressing-values); corroborated by bipm si defining constants (https://www.bipm.org/en/measurement-units/si-defining-constants). both state c = 299792458 m/s exactly., nist guide to the si, chapter 7 (https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-7-rules-and-style-conventions-expressing-values); nist definitions of si base units (https://www.nist.gov/si-redefinition/definitions-si-base-units), nist, 'fundamental physical constants' (physics.nist.gov/cgi-bin/cuu/value?c), speed of light in vacuum c = 299792458 m/s (exact, by definition), nist, codata internationally recommended 2022 values of the fundamental physical constants: speed of light in vacuum c = 299792458 m/s (exact, defining constant) — https://physics.nist.gov/cgi-bin/cuu/value?c, nist, definitions of si base units (https://www.nist.gov/si-redefinition/definitions-si-base-units); nist codata value: speed of light in vacuum (https://physics.nist.gov/cuu/constants/value/c.html), nist, definitions of si base units (https://www.nist.gov/si-redefinition/definitions-si-base-units); nist codata, speed of light in vacuum (https://physics.nist.gov/cuu/constants/value/c.html), nist, definitions of si base units (meter), https://www.nist.gov/si-redefinition/definitions-si-base-units, nist, definitions of si base units (meter): https://www.nist.gov/si-redefinition/definitions-si-base-units, nist, definitions of si base units — meter: https://www.nist.gov/si-redefinition/definitions-si-base-units, nist, definitions of si base units, meter: https://www.nist.gov/si-redefinition/definitions-si-base-units, nist, definitions of si base units: https://www.nist.gov/si-redefinition/definitions-si-base-units, nist, guide to the si, special publication 330, section 2: https://www.nist.gov/pml/special-publication-330/sp-330-section-2, nist, si special publication 330, section 2: https://www.nist.gov/pml/special-publication-330/sp-330-section-2, nist, special publication 330, section 2: https://www.nist.gov/pml/special-publication-330/sp-330-section-2 (states c = 299 792 458 m/s and explains this is fixed by the si definition)., nist, the nist reference on constants, units, and uncertainty: https://physics.nist.gov/cgi-bin/cuu/value?c (speed of light in vacuum, exact defined value: 299 792 458 m/s), physics.nist.gov, si brochure (bipm), 9th edition - definition of the metre fixes c = 299792458 m/s exactly, si brochure (bipm), 9th edition — defines c = 299792458 m/s exactly, si brochure (bipm), 9th edition — defines the metre by fixing the numerical value of the speed of light in vacuum, c, to be exactly 299792458 m/s, si brochure (bipm), 9th edition — defines the metre such that c = 299792458 m/s exactly; also nist codata fundamental physical constants listing (c = 299792458 m/s, exact, no uncertainty)., si brochure (bipm), 9th edition — defines the speed of light in vacuum c = 299792458 m/s exactly, si brochure (bipm), 9th edition — defines the speed of light in vacuum c = 299792458 m/s exactly, as adopted by the 17th cgpm (1983) resolution 1, si brochure (bipm), 9th edition — defines the speed of light in vacuum c as exactly 299792458 m/s, si brochure (bipm), 9th edition — definition of the metre fixes c = 299792458 m/s exactly, si brochure (bipm), 9th edition — definition of the metre fixing c = 299792458 m/s exactly, si brochure (bipm), 9th edition: defined value of the speed of light in vacuum c = 299792458 m/s, si brochure (bipm), 9th edition: definition of the metre fixes c = 299792458 m/s exactly, si brochure (bipm), 9th edition: definition of the metre fixes c = 299792458 m/s exactly; consistent with nist codata fundamental physical constants listing., si brochure (bipm), 9th edition: speed of light in vacuum c = 299792458 m/s, exact by definition, si brochure (bipm), 9th edition: the metre is defined by fixing c = 299792458 m/s exactly, si brochure (bipm), 9th edition: the metre is defined by fixing c to exactly 299792458 m/s, si brochure (bipm), 9th edition: the metre is defined by fixing the speed of light in vacuum c = 299792458 m/s exactly, si brochure (bipm), 9th edition: the metre is defined by fixing the speed of light in vacuum c to be exactly 299792458 m/s, si brochure (bipm), 9th edition: the metre is defined by fixing the speed of light in vacuum c to be exactly 299792458 m/s., si brochure (bipm), 9th edition: the speed of light in vacuum c is defined as exactly 299792458 m/s, si brochure (bipm), 9th edition: the speed of light in vacuum c is defined exactly as 299792458 m/s, si brochure (bipm), 9th edition: the speed of light in vacuum, c, is defined as exactly 299792458 m/s, si brochure (bipm), 9th edition: the speed of light in vacuum, c, is defined to be exactly 299792458 m/s since the 1983 redefinition of the metre, si brochure (bipm), definition of the metre: c = 299792458 m/s exactly, si brochure (bipm, 9th edition, 2019): the speed of light in vacuum, c, is defined exactly as 299792458 m/s., www.nist.gov
Work
- pinnedblocks 26,087,443 to 26,087,742 to · on Ethereum mainnet
- answered221 of 221 agreed210 needed
#1830299,792,458from www.bipm.org
#545299,792,458from www.bipm.org
#1049299,792,458from www.nist.gov
#1251299,792,458from www.nist.gov
#1168299,792,458from www.bipm.org216 more
- signed
by the attester 0x5598…2982usable until
Checking the signature in this browser.
- typed data
- the exact bytes a consumer verifies, as JSON
- attester
- 0x5598aa9146215bc13eb26f2c692ad1461fd32982
- signature
- 0x9aad7f905e81bb0b36380dd02b1045758c1516827127fa3fb6a87832f100893625ccb1df1201bf5b02100149d668793aa0adc9f288617697411b54d1e45843581c
- question hash
- 0xf48b3800b4e43d7408f87d241f925f600ad2025dace403912c353ced4a0856ef
- answer type
- uint256
- consumer
- none named; signed for the zero address
- scored
1 batch queuedon Ethereum mainnet
- scores
- settled, waiting for the batcher