History
What is the Spring Equinox?
According to Western science, the vernal equinox is the day when the length of daylight and nighttime are equal at the equator; it marks the beginning of spring in the n…
Length
Browse ScienceInfo articles and explainers related to Length.
Topic archive
Articles about Length
290 published items.
New technology
China builds an unbeatable 'super machine': Weighing 1900 tons, it can dig 350 meters underground in just one month.
Weighing in at 1,900 tons, measuring 230 meters in length and with a diameter of up to 9.03 meters, this tunnel boring machine is a testament to the ' might' of China's…
Oceanography
What is the function of the white spots above the eyes of killer whales?
Killer whales can reach body lengths of up to 9.45 meters, but their eyes are so small that we might even think they have no eyes unless we look closely.
Archeology
Top 8 largest dinosaurs on prehistoric Earth
The enormous size of these dinosaurs will amaze you.
Discover science
You may not know: The elephant bird egg is the largest bird egg in history.
The elephant bird egg is the largest egg in history, measuring 33cm in length, as large as 150 - 180 chicken eggs.
Discover science
Just by looking at this feature on the hand, you will know if someone can drink alcohol or not.
Additionally, you can gauge their cardiovascular health, endurance, and overall athletic ability.
Oceanography
The world's smallest shark, fits in the palm of your hand
The dwarf lanternshark is the smallest shark in the world, growing to a maximum length of less than 30cm.
Animal world
Whale Tapeworm - The World's Longest Parasite
Tetragonoporus calyptocephalus, formerly known as Polygonoporus giganticus, is a giant tapeworm that lives deep in the intestines of whales.
Videos
Rare animal thought to be extinct suddenly 'reappears' in people's gardens
A rare species of chicken that is extinct in the wild was suddenly discovered wandering around a home garden.
Videos
The unexplained mysteries of giant squid
Although modern technology has helped researchers learn more about giant squid, they still don't know much about why they get so big or how they mate and reproduce.
Event
Saudi Arabia's 170km straight city project is facing difficulties
Saudi Arabia will shorten the length of the city from 170km to 2.4km with a capacity of only 300,000 residents.
Space science
How will the total solar eclipse on April 8 take place?
Total solar eclipses are so rare that a given location on Earth is only likely to be seen once every 375 years on average.
Animal world
Scorpions spray acid to make enemies run away, Vietnam is full of them!
With a head and body length that can reach 85 mm when fully grown, these scorpions look quite similar to real scorpions, but possess a thin whip-like tail.
Photo library
The world's longest bridge in China: More than a hundred kilometers long, costing hundreds of trillions!
The Danyang - Con Son Bridge in China is the longest bridge in the world today, with a length of more than 164km and took just over 3 years to build at a cost of 100,000…
Scientific works
Watch China build a 6-lane highway tunnel 70m deep at the bottom of the Yangtze River
The tunnel at a depth of 70m lies at the bottom through the Yangtze River, designed to be a two-way highway with 6 lanes.