LINKS FOR HEAT TRANSFER AND INSULATION

· http://www.ornl.gov/sci/roofs+walls/insulation/ins_02.html
· http://www1.eere.energy.gov/consumer/tips/insulation.html
· http://www.energywise.govt.nz/how-to-be-energy-efficient/your-house/insulation
· http://www.eeca.govt.nz/sites/all/files/dbh-guide-to-smarter-insulation-07.pdf
· http://www.eeca.govt.nz/sites/all/files/action-sheet-2-warm-healthy-home-10-09.pdf

• http://www.bbc.co.uk/schools/gcsebitesize/science/aqa_pre_2011/energy/heatrev1.shtml

ALKALI METALS IN WATER

Somehow, I never get tired of adding alkali metals to water!

Thanks to KM for recording this on his new cellphone.

HYDROGEN LINE SPECTRA ANIMATION

You can use this Flash animation to help you understand the Bohr model of the atom, and how the transition of electrons from one energy state to another is linked to the absorption or emission of a photon.
Remember Mr Leath's nmemonic: "Little Bo Peep" for Lyman, Balmer and Paschen, the series you need to memorise for the exams!

TIM HAWKEY

Tim is of course this year's NPBHS Space School student. You can check on his progress at his Facebook page

Tim's the tall dude in the middle...

TACOMA BRIDGE COLLAPSE

This is the best colour footage I have seen so far of the 1940 bridge collapse at Tacoma Narrows in Washington State.

NEUTRINOS

If you missed Stephen Parke on the National Programme on Saturday, you can listen to his interview here

PHYSICS CLASSROOM

The old link on the right-hand side wasn't working: the Physics Classroom is now being hosted by Glenbrook South Physics website.

Check it out, it's brilliant!

THE ELEGANT UNIVERSE (PART ONE)

An entertaining and accessible documentary about string theory (amongst other things).



This is intended just as a "trailer": you can see the entire programme at the PBS website

TARANAKI TECH AT OTAGO

On a recent visit to Otago University's Physics Department I was pleased to see one of Ecoinnovations' generators being used in the energy research laboratory.
Mike Lawley makes these generators in Taranaki from Fisher & Paykel "Smart-Drive" washing-machine motors.

ROTATIONAL INERTIA FORMULAE

This diagram shows the formulae for calculating the rotational inertias of common shaped objects.