1. A JUMBO jet may take aboard hundreds of passengers and tons of cargo.

2. This ice is nearly a metre thick, and it could support a jumbo jet.

3. One now costs about $80 million, or almost twice as much as a jumbo jet.

4. If enlarged to the size of a football field, a web of dragline silk could stop a jumbo jet in flight!

5. “Imagine,” says obstetrician Malcolm Potts, “that every six hours, day in, day out, a jumbo jet crashes and all on board are killed.

6. If enlarged to the size of a football field, a web of dragline silk 0.4 inch (1 cm) thick with strands 1.6 inches (4 cm) apart could stop a jumbo jet in flight!