What is the biggest object in the world?
The biggest single entity that scientists have identified in the universe is a supercluster of galaxies called the Hercules-Corona Borealis Great Wall. It's so wide that light takes about 10 billion years to move across the entire structure.
What is the biggest thing made by man?
1. Object (Overall) The largest man-made objects in the world are submarine communications cables. From San Francisco to Japan and San Francisco to New Zealand, the cables cover over 5,000 mi (8,000 km) with a total weight of more than 176 million pounds (80,000 metric tons) per cable.
Is the space infinite?
The observable universe is finite in that it hasn't existed forever. It extends 46 billion light years in every direction from us. (While our universe is 13.8 billion years old, the observable universe reaches further since the universe is expanding).
What is bigger than a black hole?
6:5713:44The Largest Black Hole in the Universe – Size ComparisonYouTube
What is the smallest thing made by man?
Hurwitz is the creator of the nano-sculpture – a miniscule model of a human the full detail of which can only be observed with a powerful scanning electron microscope. “Trust”, a nano-sculpture of the female figure, is the smallest creation of the human form ever made. It measures about 80 x 100 x 20 micrometres.
What is the largest structure ever made?
Burj Khalifa The world's tallest man-made structure is the 828-metre-tall (2,717 ft) Burj Khalifa in Dubai (of the United Arab Emirates).
How cold is space?
In fact, it doesn't actually have a temperature at all. Temperature is a measurement of the speed at which particles are moving, and heat is how much energy the particles of an object have. So in a truly empty region space, there would be no particles and radiation, meaning there's also no temperature.
Is time Travelling possible?
Yes, time travel is indeed a real thing. But it's not quite what you've probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second. And there are important reasons why we need to understand this real-world form of time travel.
What kills a black hole?
Black holes, the insatiable monsters of the universe, are impossible to kill with any of the weapons in our grasp. The only thing that can hasten a black hole's demise is a cable made of cosmic strings, a hypothetical material predicted by string theory. But there is reason to take heart.
Can a wormhole exist?
In the early days of research on black holes, before they even had that name, physicists did not yet know if these bizarre objects existed in the real world.
How big is a quark?
~10−18 m. While the size of protons and neutrons is of the order of a Fermi (10−15 m), the size of quarks is ~10−18 m. It is deemed that quarks are composed of smaller particles – preons.
Can you get infinitely small?
Newton's famous "inverse-square law" of gravity, for example, says that the force of gravity gets four times stronger if you halve your distance from an object. If we imagine particles as points, you can make the distance between two of them as small as you like, so the force becomes infinite.
What is the tallest man made structure today?
Burj Khalifa The world's tallest man-made structure is the 828-metre-tall (2,717 ft) Burj Khalifa in Dubai (of the United Arab Emirates).
Is the Pentagon still the largest building in the world?
The Pentagon is the world's largest office building, with about 6.5 million square feet (150 acres; 60 ha) of floor space, of which 3.7 million square feet (85 acres; 34 ha) are used as offices….
| The Pentagon | |
|---|---|
| Technical details | |
| Floor count | 7 (2 underground) |
| Floor area | 6,636,360 sq ft (620,000 m2) |
| Design and construction |
Will a body decompose in space?
Halting decomposition And bacteria from the gut would still devour the soft tissues. But these bacteria need oxygen to function properly and so limited supplies of air would significantly slow down the process.
Can we see color in space?
Read on to learn more about color in space. Believe it or not the human eye can see about 7,00,000,000 colors. But, did you know that colors exist that you cannot see? Color does not change in space, because the wavelengths remain the same.
Does the past exist?
The past and future do not exist and are only concepts used to describe the real, isolated, and changing present. This conventional model presents a number of difficult philosophical problems, and seems difficult to reconcile with currently accepted scientific theories such as the theory of relativity.
What is inside a black hole?
The singularity at the center of a black hole is the ultimate no man's land: a place where matter is compressed down to an infinitely tiny point, and all conceptions of time and space completely break down. And it doesn't really exist.
Is there a white hole?
White holes cannot exist, since they violate the second law of thermodynamics. General Relativity is time symmetric. It does not know about the second law of thermodynamics, and it does not know about which way cause and effect go.
Do wormholes exist?
Wormholes are shortcuts in spacetime, popular with science fiction authors and movie directors. They've never been seen, but according to Einstein's general theory of relativity, they might exist.
Can time be bent?
So to answer your question, time does not literally "bend". A massive object modifies the proper time interval around it such that an outside observer would see objects near the mass experience less time and spacetime intervals would have their spatial components modified accordingly.
How big is a preon?
A preon is a theoretical particle composing quarks and leptons. It's size is 2 zeptometers.
What is inside a quark?
A quark (/kwɔːrk, kwɑːrk/) is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei.
Is an infinitesimal 0?
In mathematics, an infinitesimal or infinitesimal number is a quantity that is closer to zero than any standard real number, but that is not zero. The word infinitesimal comes from a 17th-century Modern Latin coinage infinitesimus, which originally referred to the "infinity-th" item in a sequence.
Is infinity close to zero?
In terms of logarithms, the original value 0 corresponds to −∞, while the original infinite value corresponds to +∞. When we treat both possible values −∞ and +∞ as a single infinity, we thus treat the original values 0 and infinity as similar.
What is the tallest thing ever?
Burj KhalifaBuilding / Tallest
Is the largest construction built by human hands?
Known for being overstated and decadent in a number of ways, Dubai outdid itself in January 2010, when it officially opened the Burj Dubai, a 2,717-ft. (828 m) tower that is the tallest man-made structure in the world.
How deep does the Pentagon go?
It was designed to withstand multiple direct hits of 200 to 300 Megaton weapons bursting at the surface or 100 MT weapons penetrating to depths of 70–100 feet (21–30 meters).
What is in the middle of the Pentagon?
At the center of the Pentagon is a five-acre park that houses a now-closed hot dog stand. “Rumor has it that during the Cold War, the Russians never had any less than two missiles aimed at this hot dog stand,” DOD Communications Officer Brett Eaton told the Stars and Stripes in 2010.
Who owns the Moon?
The short answer is that no one owns the Moon. That's because of a piece of international law. The Outer Space Treaty of 1967, put forward by the United Nations, says that space belongs to no one country.