Maglev trains: why aren’t we gliding home on hovering carriages?

It is lightning quick, clean, green – and expensive. But shouldn’t we think again about magnetic levitation? For the published … More

Supersonic flight: will it ever rise out of the ashes of Concorde?

Flying at twice the speed of sound was the preserve of the super-rich. If supersonic flight roars back to the … More

A shorter, published version is here on the Guardian website. Those of a certain age may remember the opening ceremony … More

Not too many people go on holiday hoping for bad weather. Here I’m surrounded by them. We’re at yet … More

Erica: Here is the final instalment of Dave’s account of the fieldtrip to Peru. I have to say that … More

I think that fourth night must have been the first one I’ve spent at 2,700m and I didn’t seem any … More

A field trip diary of an expedition with the NHM to northern Peru. Part 1/5 For reasons best known to … More

Day 3: San Benito to Cajamarca Another early start. As the mountains began to blush with colour, we (I) loaded … More

Day 4: Cajamarca to Celendin I would first like to reiterate that the account expressed herein is my own. My … More