The recent warm spell is giving Londoners a look at a familiar spring eyesore along city roadsides, riverbanks, in parks, and near public pathways—garbage.

They took 20 random items, pumped them full of air, and kept going until something finally gave way. From hot water bottles and pressure cookers to giant balls and everyday household objects, every ...

This experiment starts with one insane question: what happens if you launch 100 massive tires down a mountain? At first it ...