What is the largest fish that has ever lived on our planet? Detailed answer

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What is the largest fish that has ever lived on our planet? Detailed answer

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What is the largest fish that has ever lived on our planet?

The scientific name of this fossil fish is Leedsichthys, that is, "Leeds fish", after the name of a farmer who, at the end of the XNUMXth century, found the first small specimen.

This fish lived in the Jurassic period, fed, like the whale shark, on plankton. Paleontologists believe that the length of this fish could reach 30 meters.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Why did the Americans put about 1963 million needles into orbit in 500?

In the 1950s, the main means of communication for the military with distant objects was radio waves reflected from the Earth's ionosphere. To increase the reliability of communications, the Americans wanted to supplement it with an artificial ionosphere and launched 480 million copper needles about 2 cm long into medium earth orbit. Radio signals became more powerful, but this direction did not receive much development due to the advent of satellite communications, as well as due to protests scientists who declared the inadmissibility of space pollution. A few years later, most of the needles burned up in the planet's atmosphere, but some of their clusters continue to be in orbit to this day.

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Audfly Focusound glass speaker with directional sound 07.04.2023

Hong Kong-based electronic acoustic solutions company Audfly has been working on glass for directional sound transmission since 2019. However, only now the company has announced its intention to release a finished product by presenting the Focusound solution on the Kickstarter platform. The novelty is positioned as a substitute for headphones - the speaker directs the sound exactly to the user.

The use of ultrasound for directional sound transmission is not really a new idea. Technologies for immersing in a user's personal "sound bubble" without disturbing others present in the room have been invented for a long time - in theory, this allows you to do without headphones. However, Audfly claims to be the only one to have built the first device of its kind using clear glass.

The result of several years of research and development is a speaker made from a laminated glass panel, which in turn consists of many small "vibration blocks" that direct sound directly at the listener. The 14" glass is enclosed in an aluminum frame. The model has a folding stand to optimize installation angles. In addition, other objects can be demonstrated behind transparent glass without fear that this will affect the "delivery" of sound to the user.

Focusound also has a special module for connecting other devices: TVs, computers, game consoles and even smartphones via cable or via Bluetooth. In addition, according to the company, the system uses the Multiple SoundZone algorithm to create surround sound. The speaker has a range from 400 Hz to 20 kHz, the sound pressure level is 74 dB, the total harmonic distortion is less than 10%.

However, the product does not claim to be the best solution for true audiophiles. According to the developers, the main focus is on the ability of the device to generate directional sound, with which you will not disturb others, and not on the purity of the sound.

The speaker is offered on Kickstarter for $329 for a single order and $419 for two at once. Retail prices are expected to be $699 for the Solo variant and $969 for the Duo bundle. If the project goes ahead as planned, deliveries should begin as early as June this year. It is known that there are still 33 days left before the fundraising ends, and Audfly has already raised more than $208 with the required $5095.

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