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Hamish Johnston

I am an online editor of Physics World. I did a PhD in condensed-matter physics at McMaster University in Canada. I am still fascinated by what is an extremely rich and varied subject that I believe is ignored by the media (Physics World excepted, of course). As a result, I’m happiest when I’m blogging about topological insulators, the latest quasiparticle or some other quirk of condensed matter. So, if you spot something weird and wonderful in solid-state physics, please get in touch. In my spare time I am a Scout leader.

Author archive

Facts and opinion about graphene

Facts and opinion about graphene

Graphene guru Pablo Jarillo-Herrero of Columbia University set me straight on the miraculous flakes of carbon. -There were 180 papers published on graphene in the last year, but less than 10% were experimental. -If it’s five or more atomic layers thick, then it’s just plain old graphite. -If it’s 1-2 layers thick, the electrons think […]

Commercial high-Tc applications

Commercial high-Tc applications

In my entry on “Rock star physicists” I said that there are no commercially viable applications of high Tc superconductors. I have just discovered that this could be wrong — at least according to Alexis Malozemoff of American Superconductor Corporation. In his talk “Transforming the Grid with Superconductivity” (L1 5), Malozemoff said that the company […]

Three for medical physics

Three for medical physics

I just came out of a medical physics press conference that presented three very different ways that physics can be put to use saving lives. The first presentation was from David Nolte of Purdue University who has created a very simple but effective way of measuring motion inside cancer cells. The technique involves splitting a […]

Standing room only for graphene

Standing room only for graphene

The room was packed to the rafters for Tsuneya Ando’s talk on “Theory of quantum transport in graphene and nanotubes” (H28 1), which kicked off the first of five focus sessions on graphene. Although it may still be too early to call, I’d say that graphene will be THE topic of this year’s meeting. I […]

Day two beckons

Day two beckons

It’s day two of the March meeting and after cutting my teeth yesterday on some lighter material it’s time to get stuck into some serious physics. The first thing on the agenda is graphene. There are at least a half a dozen sessions on graphene this year, not bad for a material that’s only been […]

Rock star physicists

Rock star physicists

What do superconductor expert Paul Chu and Jimi Hendrix have in common? They were both on stage at the “Woodstock” of their respective professions — at least according to the APS, which today celebrated the 20th anniversary of a special session on high Tc superconductivity that was held at the 1987 March Meeting in New […]

Icicles and hot air

Icicles and hot air

Here’s two things that you probably don’t know about icicles — they are usually filled with liquid water and their shapes are defined by hot air. So says a theory put forth by Martin Short of the University of California at Los Angeles in his talk “How the icicle got its shape” (B7.00003). Icicles elongate […]

A new spin on windmills

A new spin on windmills

Windmills could someday reduce net global carbon dioxide emissions to zero, says Klaus Lackner of Columbia University. But these aren’t the sort of windmills that generate electricity. Instead, they scrub carbon dioxide from the air passing through them — much like a conventional smokestack scrubber. In his talk “The future of fossil fuels” (A2.00003), Lackner […]

Rocky Mountain physics

Rocky Mountain physics

I arrived in Denver on Saturday and had a fantastic Sunday touring the mountains with an old physicist friend of mine who lives just outside of the city. While most of our tour involved taking in the beautiful scenery of the Rocky Mountain foothills, it had a definite physics theme. Steve’s a bit of an […]

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