What are the dimensions of the universe? Detailed answer

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What are the dimensions of the universe? Detailed answer

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What are the dimensions of the universe?

Let's try to imagine the scale of the Universe, taking for starters the size familiar to us: the height of the ceiling is 4 meters. Let's multiply it by ten thousand and at the same time we will go out into the stratosphere (40 kilometers). Let's take the next step: multiply by ten thousand more and get to the moon (400 kilometers), and multiply by ten thousand more, we will get to the edge of the solar system, which is 000 billion kilometers away, that is, the distance that light will travel in about 4 hours. This limit has already been reached by automatic stations sent from Earth.

The next step will catapult us directly to Alpha Centauri, the nearest star, 40 billion kilometers from Earth. Now one kilometer is ridiculously small, and the unit of measurement is a light year, which is a little less than 000 billion kilometers. Alpha Centauri is 10 light years away.

The sixth step will take us into the bowels of the Galaxy - a huge mass of hundreds of billions of stars, one of which, our Sun, is located on the outskirts of this cluster. After the next multiplication by ten thousand, that is, the next step, we will be taken to a distance of 400 million light years, while the stars are already obviously too small to be distinguishable, and the Universe seems to us evenly filled with billions of galaxies.

Further, even mentally, we will not be able to move forward. According to the ideas of modern science, it is impossible to see objects that are more distant than about 12 billion light years.

Such are the cosmic scales today.

Author: Cellarius E.Yu.

Random interesting fact from the Great Encyclopedia:

How many kilometers between the Pacific and Atlantic oceans?

Panama is located on a narrow curved isthmus on the border of two continents and two oceans. The Spaniards, who were looking for the shortest route to India, discovered the Isthmus of Panama at the beginning of the XNUMXth century and made it a transit point. The looted gold and silver were brought here to be sent to Spain. From here, Spanish troops were sent to Central and South America to conquer new lands.

Since the middle of the 15th century, Americans have been trying to build a canal between the two oceans on the Isthmus of Panama. However, work began only at the beginning of the 1914th century, but the French construction company did not have enough funds to complete it. The construction of the Panama Canal was continued by the United States. On August 1920, XNUMX, the first American ship passed through it, and by XNUMX the canal was finally ready.

Entering the canal from the Caribbean Sea, ships pass through Lake Gatun. Then, through three locks, as if on steps, they descend into the Panama Bay of the Pacific Ocean. The whole journey of 80 kilometers takes 8 hours.

Panama receives significant income from the maintenance of this waterway. This small country also profits from the trade in bananas, coffee, oil, sugar, and meat.

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Random news from the Archive

5G communication module for cars 20.10.2019

The South Korean company LG Innotek has introduced an automotive communication module that supports 5G networks. According to the manufacturer, this is the world's first 5G module for cars. It is built on the Qualcomm element base.

The design of the module includes a modem, memory and RF circuits - about 480 components in total. The module provides real-time traffic information exchange, precise location determination, V2X (Vehicle-to-Everything - between the vehicle and surrounding objects) communication and transmission of large amounts of data. In other words, it performs the key functions required for fully autonomous driving without driver intervention.

Using 5G technology for an in-vehicle communication module has proved challenging because it uses high frequencies, resulting in more signal loss than LTE (Long Term Evolution, 4G mobile technology). Another problem is the high heat dissipation.

However, 5G provides an important advantage: the module introduces a delay of 1 ms or less, which is an order of magnitude less than the delay of the LTE module. As a result, for example, if a self-driving vehicle traveling at a speed of 100 km/h detects an obstacle and activates the emergency braking function, in the case of an LTE module, braking starts after the vehicle has traveled 1,4 m, and with a 5G module, only 2,8 cm.

The dimensions of the module are 40 x 50 x 3,5 mm, so it is easy to install it anywhere inside or outside the car. Compatibility with LTE modules allows you to replace existing LTE modules without changing the system design.

The module can be used regardless of region or vehicle type as it complies with 3GPP Release 15.

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