Giveaway of the day – free stuff to help make your PC still not as good as a mac.

Hypersonic hydrogen airliner – could be just the catalyst we need to start electrolysing hydrogen fuel on a massive scale.

London RIP – all the things you liked about London that aren’t there any more.

Streetcar – low-cost car non-ownership in London. Hope thy can make it work.

Adam Boulton on Hillary’s campaign funds