Showing posts with label sound. Show all posts
Showing posts with label sound. Show all posts

Thursday, 26 June 2025

Airburst near Atlanta

2025, June 26. USA, Georgia, east of Blacksville and 50km SSE of Atlanta. Medium Airburst. Coordinates: (33.4N, 84.1W). Seen as far north as Cleveland in Ohio over 900km away. Altitude: 32.6 km. Energy: e = 17, -e = 48 or 480,000 kg/TNT. Sound: Had delayed and concurrent properties. Between 12:15 and 12:30 p.m. Eastern time, more than 100 reports of a possible fireball were submitted to the American Meteor Society website from Georgia, South Carolina and Tennessee.

Update: A meteor fragment has hit a house (crashed through the roof and floor). Tremor felt.

GOES-19, a NOAA satellite.  

Also 2025, June 25. Western Australia, Indian Ocean. Meteor. Approximately 260km south of Hamelin Bay. Velocity: 55.2 km/s. Duration: 2.52 sec. Coordinates: LLB: (-36.57, 114.61), LLE: ( -37.56, 113.67). Height: 114.58 to 99.71 km. Time: 16:33. A Marine Animal Disturbance Alert should still be noted for this region, even though it would be extremely unlucky to have a cetacean stranding. The meteors over the last two weeks are not large, just moderately consistent. 

Tuesday, 21 January 2025

Mass whale stranding and a whale ear

Whale earbones are dense, which allows them to hear directional sounds in water. Whales have a special structure of the ear. Effectively they see in water using sound, and to do this the ears have become modified. Ear bones originally developed in terrestrial animals. In water, it's a different story. Humans in water hear muffled sounds and can not determine where the sound originated. On land, humans use the time difference between the sound hitting the right and left ears. The brain then knows which direction the sound is coming from. But in water, the tissue of the face and the skull is almost the same density as water. So instead of going around from the right to the left ear, it goes straight through. The sound reaches both ears at the same time, hence the muffled data. In whales, the added density in their ears reestablishes their ability to hear directionally underwater. Below is an image a whale's fossils underside. The covering on the ear on the right side of a whales ear and the missing covering on the left side. This is been the case for millions of years, many millions. So what does all this mean for mass whale strandings and meteor airbursts. When I started my research into mass whale stranding, I wondered why whales seemed to turn right. And this happens in both the southern and northern hemispheres. It means at the moment in New Zealand the December airburst was to the N.W of New Zealand, Chatham Islands. They are coming in and turning. When airbursts occur in other regions, the whales start coming into different locations because their ear structure has been damaged. This is why certain regions have more strandings than others, because of population densities, migration routes and accompanying meteoroid flux that is higher and lower depending on location. Using this information, you can locate the area, the time, the distance to where the damage to the whale was initiated and how long the animals have been roaming the ocean injured. To injure a whales ear takes great force, and this can only be achieved by a meteor airburst. VLF radio waves that can sometimes accompany meteors disrupt this same organ but the survival rate is much higher because the whale is more panicky than injured.

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Whales in rivers

2026, September 14. USA, California. A subadult fin whale floating offshore, about 10 km out. In the first stages of decomposition. 2026, S...