Quick search Find article
Quick search
Find article

Estimating Avogadro's number from skylight and airlight

Peter Pesic

Show affiliations


Naked-eye determinations of the visual range yield order-of-magnitude estimates of Avogadro's number, using an argument of Rayleigh. Alternatively, by looking through a cardboard tube, we can compare airlight and skylight and give another estimate of this number using the law of atmospheres.


PACS

33.20.Fb Raman and Rayleigh spectra (including optical scattering)

Subjects

Atomic and molecular physics

Dates

Issue 1 (14 January 2005)

Received 13 August 2004, in final form 18 October 2004

Published 29 December 2004



  1. Estimating Avogadro's number from skylight and airlight

    Peter Pesic 2005 Eur. J. Phys. 26 183

  2. Experimenting with musical intervals

    Michael C LoPresto 2003 Phys. Educ. 38 309

  3. Crystalline carbonitride forms harder than the hexagonal Si-carbonitride crystallite

    Yongqing Fu et al 2001 J. Phys. D: Appl. Phys. 34 1430

  4. Equation for the Determination of the Density of Moist Air (1981/91)

    R S Davis 1992 Metrologia 29 67

  5. The dielectric behaviour of single-shell spherical cells with a dielectric anisotropy in the shell

    Y T C Ko et al 2004 J. Phys.: Condens. Matter 16 499

  6. Diagonal approximation of the form factor of the unitary group

    G Berkolaiko 2006 J. Phys. A: Math. Gen. 39 L77

  7. The BIPM flexure-strip balance FB-2

    A Picard 2004 Metrologia 41 319

  8. Low-energy positron-H2 collisions in the distributed positron model

    T L Gibson 1992 J. Phys. B: At. Mol. Opt. Phys. 25 1321

  9. Intrinsic characterisation of orthogonal separation of one coordinate in the Hamilton-Jacobi equation

    E G Kalnins and W Miller 1982 J. Phys. A: Math. Gen. 15 2003

  10. Thermally induced stress hysteresis and co-efficient of thermal expansion changes in nanoporous SiO2

    Martin T K Soh et al 2007 J. Phys. D: Appl. Phys. 40 2176

Related review articles

What's this?
View review articles related to this research to gain an insight into the key trends in this subject area. Related review articles are selected based on PACS/MSC codes, and are no more than three years old.

  1. Theoretical methods for small-molecule ro-vibrational spectroscopy

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.