List of All Articles with Tag 'h'

Hundreds of crocodiles in Australia were recently sent into a sex frenzy when a low-flying Chinook helicopter passed overhead. Ranchers from the Koorana Crocodile Farm in Queensland, which houses more than 3,000 crocodiles, said many of their residents became aroused after the flyby. John Lever, owner of the farm, said pilots use it as a marker point in their flights. When a pilot flew low so their passengers could take a picture of the crocodiles, the reptiles were whipped up into a frenzy. He said: “All of the big males got up and roared and bellowed up at the sky, and then after the helicopters left they mated like mad. “There's something about the sonic waves that really gets them stirred up.” As it turns out, thunderstorms regularly act as an aphrodisiac to crocodiles. If the reptiles mate during storm season, their babies are more likely to hatch in a non-thunderstorm season, meaning they don’t drown in flood water. “The crocodiles start vocalising to each other [when a storm is coming],” Lever said. “They don't have a very sophisticated voice box, but they vibrate their windpipes to send messages through the water.” That may explain why the helicopter caused such an aroused response – they thought it was a megastorm. Herpetologist Mark O'Shea from the University of Wolverhampton told LiveScience: “Chinooks may artificially recreate the sound of the start of a thunderstorm.” Another possible explanation is that the movements in the water or downward wind caused by the choppers could trick them into thinking there is a change of atmospheric pressure, like when a storm is approaching. “I imagine that the downdraft from a large, heavy helicopter would create a change in pressure that the [sensory organs] on crocodile skin can detect. “Dropping barometric pressure from a downdraft may resemble the change in pressure from a storm.” Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

President Joe Biden on Friday will speak via Zoom with the families of Americans believed to be held hostage by Hamas.

Russia didn't orchestrate this conflict but it could take advantage of it, says the BBC's Russia editor.

Kaiser Permanente reached a tentative deal with the unions representing 75,000 employees, following the largest-ever health care strike in US history.

Israel appears to be preparing for a ground invasion into Gaza. How might it unfold?

Which channel will broadcast the Colorado game against Stanford? What time does the game start? Tune in to catch the action!

By Emma-Victoria Farr, Andres Gonzalez and Markus Wacket FRANKFURT/LONDON Miami-based infrastructure investor I Squared Capital aims to sign

Scientists have come up with a potential solution to deal with dust on the moon which makes conducting research tricky. Dust erodes space suits, clogs machinery, interferes with scientific instruments and makes moving around on the surface difficult. But they reckon moon dust could be melted using a giant lens developed by the European Space Agency to create solid roads and landing areas. Using a fine-grained material called EAC-1A, developed as a substitute for lunar soil, scientists used a 50mm diameter laser beam to heat the dust to about 1,600C and melt it. Then they traced out bendy triangle shapes, which could be interlocked to create solid surfaces across large areas of lunar soil to be used as road. However it would take about 100 days to create a 10 x 10m landing spot so it is not a quick fix. To make matters worse, the lens needed for the laser to work would be difficult to transport from Earth and could also get dust in it which may reduce its functionality. “You might think: ‘Streets on the moon, who needs that?’” said Prof Jens Günster, of the Federal Institute of Materials Research and Testing in Berlin and co-author of a report on the possible solution. “But in fact it’s a kind of depressing demand [even] early on. It’s very loose material, there’s no atmosphere, gravity is weak, so the dust gets everywhere. It contaminates not only your equipment but other nations’. No one would be happy to be covered in dust from another rocket." Dust has blighted previous missions, such as the Surveyor 3 spacecraft (damaged by dust kicked up by the Apollo 12 landing), and overcoming this challenge is a priority for Nasa, which aims to establish a permanent lunar outpost. Transporting building materials to the moon would be too expensive, so there is a need for unconventional solutions. “You need to use what’s there and that’s simply loose dust,” said Günster. The findings are published in the journal Scientific Reports. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Andreas Christensen admits he was frustrated to miss out on Barcelona's win over Porto.

The deal comes after junta leader Capt Traore asked President Putin to help set up a nuclear plant.

Second gentleman Doug Emhoff's role as a leader confronting antisemitism -- and, personally, his historic role as the first Jewish spouse of a president or vice president -- has taken new significance this week.

A teacher was killed Friday and several people injured in a knife attack at a public school in Arras, northern France, according to CNN affiliate BFMTV.