No submolecular energy released in its presence could escape it.

In London alone, £62.5 million was wasted as energy escaped through wall cavities and cracks.

This is because the energy (heat) in the tea escapes into the surrounding area.

Could I build a shield that worked both ways - letting no energy enter or escape?

If energy cannot escape a system, its mass cannot decrease.

No energy or matter can escape: a black hole has been created.

That energy was escaping almost as soon as Mirabel opened.

If you use a higher voltage, the extra energy escapes as heat.

Cloud cover was key to describing how much energy reached or escaped the ocean surface.

This energy, if allowed to accumulate, could escape spontaneously in a powerful rush of heat.