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7UMVCV2C5TQH (so everyone else can ignore!) Tweet

Mediterranean Gull!

With Portishead Marina almost iced over, one individual huddled in with the black-headed and herring gulls, and many common gulls. […]

Endangered Species & Biodiversity

Our relentless killing of anything on the planet that gets in our way. […]

High Tide, Redux

Spring Tide, Portishead Pier

Further to my ignorance about the highest tides, a lively debate has ensued on BirdForum. Maybe not the ideal platform but here’s our understanding as I understand it.

Several factors determine the tide’s height. Yes, proximity of the Sun is one. Newton’s calculation for gravity, by which the Sun (or the Moon) pulls Earth’s oceans, has the pull grow as the distance shrinks between two bodies. It grows proportional to the square of this distance. So, more…