MV Derbyshire wave pressure deck hatches

A wave can overwhelm a ship through its hatches

In the wreck of the bulk carrier MV Derbyshire, analysts estimated that pressure on the deck hatches matched the pressure from a 20-metre column of water. The hatches were designed for less than 2 metres, showing how pressure at a vulnerable opening can exceed what it was built to withstand.

Some viruses can make their hosts more resistant to bacterial infections

Viruses are usually discussed as causes of disease, but some persistent viral infections can alter a host's immune response in useful ways. Experiments in mice have shown that certain latent herpesvirus infections can temporarily improve resistance to particular bacterial pathogens. The effect depends on the virus, host and circumstances; it does not mean viral infections are generally beneficial.

“Atheist” did not always mean denying God

In early modern religious disputes, the label could describe someone who believed in God but denied that God guided events, or held views judged incompatible with accepted Christian teaching. The word alone does not show whether a person denied God's existence.

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MV Derbyshire wave pressure deck hatches

A wave can overwhelm a ship through its hatches

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