Long Excursion—Bathgate Hills

Mole Hills from Mountains

Long range transport and fate of a stratospheric volcanic cloud from Soufriere Hills volcano, Montserrat

Volcanic eruptions emit gases, ash particles and hydrometeors into the atmosphere, occasionally reaching heights of 20 km or more, to reside in the stratospheric overworld where they affect the radiative balance of the atmosphere and the Earth’s climate. Here we use satellite measurements and a Lagrangian particle dispersion model to determine the mass loadings, vertical penetration, horizontal...

Filariasis in the Mikir Hills

Blackwater Fever in the Hills

Antigravity hills are visual illusions.

Antigravity hills, also known as spook hills or magnetic hills, are natural places where cars put into neutral are seen to move uphill on a slightly sloping road, apparently defying the law of gravity. We show that these effects, popularly attributed to gravitational anomalies, are in fact visual illusions. We re-created all the known types of antigravity spots in our laboratory using tabletop ...