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Roscommon Herald — Ireland has much to learn from history of division, says Taoiseach

Laois Nationalist — Ireland has much to learn from history of division, says Taoiseach

Ireland s Bastille Day - 100 years on Trinity conference considers the historical significance of the handover of Dublin Castle

Ireland s Bastille Day - 100 years on Trinity conference considers the historical significance of the handover of Dublin Castle
tcd.ie - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from tcd.ie Daily Mail and Mail on Sunday newspapers.

EarthSky | The Wild Duck Cluster, M11, flies through Scutum

EarthSky | The Wild Duck Cluster, M11, flies through Scutum
earthsky.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from earthsky.org Daily Mail and Mail on Sunday newspapers.

The Outside Story: Black fly flight control

The Outside Story: Black fly flight control Adelaide Murphy Published: 4/25/2021 12:58:49 PM On sunny, warm days, house flies hatch and buzz around homes and offices. These flies complete aerobatic stunts that easily evade human efforts at swatting or shooing. That aerial agility, so frustrating to the would-be swatters, is thanks to a pair of highly specialized sense organs called halteres. Halteres are modified wings loaded with sensory cells and are known to occur in only two insect orders: the Diptera and the Strepsiptera. The Strepsiptera are a small and unusual group of wasp parasites with males that have front wing halteres. The Diptera, or “true flies,” are diverse and include houseflies, mosquitoes, craneflies, and gnats. The halteres of these true flies are modified hindwings. While these tiny organs don’t contribute to the aerodynamic forces used for flying, Diptera halteres allow flies to spin, dip, and zigzag in flight.

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