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...2 million years ago) is marked by glaciations and during this period all but the highest points of Ireland were covered by ice sheets. The ice sculpted the older bedrock and has led to most of the landscape features we see today. Drumlins formed beneath the ice and glacial valleys were cut into the rock. Within the last 10,000 years warming has occurred allowing for...

...2 Comet C/2020 F3 (Neowise) was photographed during July 2020 in the northern skyShow descriptionComet C/2020 F3 (Neowise) was photographed during July 2020 in the northern sky. This comet was visible at midnight showing a bright nucleus with a slightly curving tail against the dark sky. A comet is a compelling option. They are beautiful objects that change their position...

...2-3 minutes, requiring a system which is constantly switched on. The engines drive the system using excess heat and the general idea is to maintain a constant cabin temperature, around 21 C, with fewer draughts and reduced odours. The aircraft body is lined with insulation but this is only a few centimetres thick, another reason for needing continuous heating or cooling....