Science
No wind but also waves: where does the high tide seawater actually come from? Where does the water go after the tide goes out?
Looking out to sea, the sea level seems to be never-ending, and the ocean is never calm. The ocean brings human feelings that rivers and lakes do not have. For people who have lived by the sea since the beginning, understanding the ocean can certainly help people to live better.
By Husain Hiram4 years ago in Earth
What are Gemstones? Why are they used?
Gemstones are precious or semiprecious stones that can be used for personal adornment, jewelry, or other decorative purposes. They are often cut and polished to create a dazzling effect. Gemstones are typically categorized by the type of stone, such as diamonds, emeralds, or rubies. Each type of stone has its own unique set of properties, which can be used to create different looks. For example, diamonds are the hardest known material and can be used to create a very sparkly effect, while emeralds are green gemstones that is associated with nature.
By Himalya Quartz4 years ago in Earth
Why is the earth able to spin forever? Where does its energy come from?
Every day, the earth rotates once, and due to the rotation of the earth, we can see the sunrise and sunset every day. Since the birth of the earth 4.6 billion years ago, the earth has never stopped rotating, and the earth will continue to rotate in the future until the day when the earth is destroyed. But why does the earth rotate? Where does the power of the Earth's rotation come from?
By sondra mallen4 years ago in Earth
Zhu Rong discovers that water also exists on Mars recently | Global scientific news
? COVID-19 epidemic? China's cancellation of zero clearance policy may trigger a wave of O'Micron infection. China's dynamic zeroing policy, designed to cut off the chain of transmission and quickly fight the epidemic, has been used to deal with the more contagious mutant novel coronavirus since August 2021. Recently, researchers from Fudan University predicted COVID-19 's disease burden after China abolished the dynamic zero clearance policy. The results show that if the current dynamic zero clearance policy is abolished, it may lead to a large number of O'Micron infection. The study is published in Nature Medicine.
By jsyeem shekels4 years ago in Earth
New O'Micron variants BA.4 and BA.5 are spreading rapidly in South Africa, faster than BA.2. | Global science news
? Novel coronavirus? New O'Micron mutants BA.4 and BA.5 are spreading rapidly in South Africa. New Omicron variants BA.4 and BA.5, first detected by the South African Genome Monitoring Network in mid-December 2021 and January 2022, are spreading rapidly in South Africa, according to Nature's website. According to Science News, from 17 April to 7 May, the number of new cases per day in South Africa increased rapidly from about 1000 to 10,000. At present, these two seed variants have been found in more than a dozen countries (mainly in Europe). BA.4 and BA.5 spread slightly faster than Omicron's BA.2 sublineage, while BA.2 was more contagious than the first Omicron variant BA.1.
By jsyeem shekels4 years ago in Earth
This may be the ugliest robot you've ever seen, but it can deform at will like venom, be cut off and be reborn.
There is an alien life form that can be parasitic on humans and gives the host a powerful ability to deform and stretch at will like a fluid and enter a narrow space to carry out acts of destruction. It is venom.
By gaisndm Hawkshaw4 years ago in Earth
Discovery of the largest comet so far, about the size of Tianjin | Global scientific news
? Astronomy? The largest known long-period comet On January 8 this year, a team of researchers at the University of California, Los Angeles (UCLA) used the Hubble Space Telescope to identify comet Cmax 2014 UN??? Five pictures were taken. Combined with radio data from the Atacama large millimeter / submillimeter wave array (ALMA), the team confirmed that the effective diameter of the comet's nucleus is 119 ±15km, making it the largest known long-period comet. The results are published in the Astrophysical Journal KuaiBao. Tianjin has an area of 11966 square kilometers and an equivalent diameter of about 120km. The diameter of the comet is about the same as that of Tianjin.
By gaisndm Hawkshaw4 years ago in Earth
The biggest confusion for cat owners: why do cats have to wake people up in the early hours of the morning?
When you have to attend an important meeting in the morning, you are in a sweet dream at 4: 00 in the morning, but you are suddenly woken up by a cat jumping up and down. Why is the cat owner "crazy" in the middle of the night? How can shoveling officials keep their sleep?
By jsyeem shekels4 years ago in Earth
Why can birds fly so well?
A collection of journals and services under Nature, dedicated to serving the scientific community, we provide a range of high-quality products and services covering life sciences, physics, chemistry and applied sciences. Among them, the journal Nature (Nature), founded in 1869, is a leading international science weekly.
By jsyeem shekels4 years ago in Earth
