How to write a problem statement

2024/05/2116:43:19 science 191964

How to write a problem statement - DayDayNews

How to write a problem statement - DayDayNews

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There is a terrifying legend circulating deep in the dense forests of Xishuangbanna, Yunnan. There is a man-eating blanket-like monster in the Lancang River that sucks human blood. It is extremely terrifying. Once encountered, there is no possibility of survival. Is this true? - DayDayNews

There is a terrifying legend circulating deep in the dense forests of Xishuangbanna, Yunnan. There is a man-eating blanket-like monster in the Lancang River that sucks human blood. It is extremely terrifying. Once encountered, there is no possibility of survival. Is this true?

The "blood-sucking blanket" in the Xishuangbanna River drags animals into the water and eats them. What kind of animal is it?

06/10 1236

Recently, researchers such as Broad Institute of MIT and Harvard David Liu published a review in Cell to introduce the research progress in this field. - DayDayNews

Recently, researchers such as Broad Institute of MIT and Harvard David Liu published a review in Cell to introduce the research progress in this field.

Cell | David Liu and others review the research progress of gene editing vectors

06/09 1876

Chinese people have a special emotion for the moon. Chang'e flies to the moon, the Moon Rabbit makes medicine, we are strangers in a foreign land, but we still share the beauty of the moon. The moon represents my heart. Throughout the ages, many thoughts and emotions have been pl - DayDayNews

Chinese people have a special emotion for the moon. Chang'e flies to the moon, the Moon Rabbit makes medicine, we are strangers in a foreign land, but we still share the beauty of the moon. The moon represents my heart. Throughout the ages, many thoughts and emotions have been pl

Why do American experts want to blow up the moon and leave the earth without seasons? What is their purpose?

06/10 1691

In Thailand, because most vaccinated people have no symptoms or very mild symptoms when infected with the new coronavirus Omicron variant, many people have the option of quarantining at home. - DayDayNews

In Thailand, because most vaccinated people have no symptoms or very mild symptoms when infected with the new coronavirus Omicron variant, many people have the option of quarantining at home.

Thai experts explain: How long is enough for COVID-19 patients to be quarantined?

06/09 1186

When it comes to invasive alien species, the first thing that comes to everyone's mind is that they have no natural enemies and reproduce wildly, seriously threatening the local ecological balance. Since the spring of 2022, a large number of invasive alien species have appeared i - DayDayNews

When it comes to invasive alien species, the first thing that comes to everyone's mind is that they have no natural enemies and reproduce wildly, seriously threatening the local ecological balance. Since the spring of 2022, a large number of invasive alien species have appeared i

A large number of white mud ants appear in Qingdao! A boat catches 200 kilograms a day, and not only are they inedible, but they also eat clams

06/09 1094

The metallurgical industry in the Qing Dynasty exceeded the level of the mid-Ming Dynasty. According to statistics from the Geological Survey, the national output of iron smelting by the old method was more than 170,000 tons in 1919, and the output of iron in the late Qing Dynast - DayDayNews

The metallurgical industry in the Qing Dynasty exceeded the level of the mid-Ming Dynasty. According to statistics from the Geological Survey, the national output of iron smelting by the old method was more than 170,000 tons in 1919, and the output of iron in the late Qing Dynast

Cold Knowledge of the Qing Dynasty - Metallurgical and Machinery Manufacturing Achievements of the Qing Dynasty

06/10 1613

The spring itself is elastic. After being compressed, the spring will have the tendency to return to its initial state, and therefore has elastic potential energy. We can think of it as the energy stored in the overall system of the spring. So the question is Question: If a compr - DayDayNews

The spring itself is elastic. After being compressed, the spring will have the tendency to return to its initial state, and therefore has elastic potential energy. We can think of it as the energy stored in the overall system of the spring. So the question is Question: If a compr

Put a compressed spring into strong acid. After the spring dissolves, where does the energy of the spring go?

06/09 1513

Researchers such as Gao Fu from the Institute of Microbiology, Chinese Academy of Sciences, have just published an article in NEJM introducing the neutralizing ability of volunteer sera with different vaccination programs against Omicron subtypes. Under similar conditions, two do - DayDayNews

Researchers such as Gao Fu from the Institute of Microbiology, Chinese Academy of Sciences, have just published an article in NEJM introducing the neutralizing ability of volunteer sera with different vaccination programs against Omicron subtypes. Under similar conditions, two do

Confused about how to get vaccinated? Pay attention to the latest NEJM work such as Gao Fu

06/09 1339

my country's first artificially bred rabbit cat turns one year old. On July 7, the Internet celebrity "Elder Snake" in Xining Wildlife Park is one year and two months old. "She" is my country's first artificially bred rabbit cat. "She" "It not only fills the gap in the successful - DayDayNews

my country's first artificially bred rabbit cat turns one year old. On July 7, the Internet celebrity "Elder Snake" in Xining Wildlife Park is one year and two months old. "She" is my country's first artificially bred rabbit cat. "She" "It not only fills the gap in the successful

Xining is awesome! For the first time, China achieved

06/09 1073

Wang Jianping: One article per day: "Theory of Perception." Part 9" (105) Why is a problem a problem? Why is there a problem? Existence has existed for hundreds of millions of years. Is there something wrong with existence? Logically speaking, there is definitely no problem. If t - DayDayNews

Wang Jianping: One article per day: "Theory of Perception." Part 9" (105) Why is a problem a problem? Why is there a problem? Existence has existed for hundreds of millions of years. Is there something wrong with existence? Logically speaking, there is definitely no problem. If t

A major turning point for mankind will occur: all problems will no longer be a problem

06/09 1687

Pictured above is Physarum polycephalum, a protist, specifically a slime mold. The term "slime mold" does not refer to a specific single group, but is a broad term referring to several types of eukaryotes that behave similarly. Regardless, they possess intelligence, although it l - DayDayNews

Pictured above is Physarum polycephalum, a protist, specifically a slime mold. The term "slime mold" does not refer to a specific single group, but is a broad term referring to several types of eukaryotes that behave similarly. Regardless, they possess intelligence, although it l

Intelligent slime mold

06/11 1668

01. Nostalgia is a spaceship heading to Mars. ——Douyou 02. Since childhood, I have been taking care of the stars of all generations alone. ——Bai Helin's "Loneliness" 03. The stars should laugh, the universe is a remote place anyway. ——Pasternak 04. All my desires and contemplatio - DayDayNews

01. Nostalgia is a spaceship heading to Mars. ——Douyou 02. Since childhood, I have been taking care of the stars of all generations alone. ——Bai Helin's "Loneliness" 03. The stars should laugh, the universe is a remote place anyway. ——Pasternak 04. All my desires and contemplatio

Golden sentence#星星——All my desires and contemplations are the slowly exhaled air currents of this universe.

06/11 1169

Today, an insight into the vision of a once young cosmic artist shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of SPT0311-58 galaxies. (Image source: ALMA (ESO/NAOJ/NRAO)/S. - DayDayNews

Today, an insight into the vision of a once young cosmic artist shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of SPT0311-58 galaxies. (Image source: ALMA (ESO/NAOJ/NRAO)/S.

Water was discovered in ancient galaxies, which surprised astronomers. What happened?

06/11 1154

Text/Picture Yangcheng Evening News all-media reporter Wen Cong has completed about 700 experimental projects, filling many gaps in my country's scientific research field... Next month, the China Spallation Neutron Source (CSNS) will have been in operation for four years. With th - DayDayNews

Text/Picture Yangcheng Evening News all-media reporter Wen Cong has completed about 700 experimental projects, filling many gaps in my country's scientific research field... Next month, the China Spallation Neutron Source (CSNS) will have been in operation for four years. With th

Filling in many scientific research gaps! The China Spallation Neutron Source will be in operation for four years丨The party flag is flying high at the grassroots level

06/11 1511

In fact, we are not unfamiliar with the term mycotoxins. They generally exist in grains. The detection of mycotoxins can be carried out on-site. When choosing instruments for testing, we must choose brands with good quality. - DayDayNews

In fact, we are not unfamiliar with the term mycotoxins. They generally exist in grains. The detection of mycotoxins can be carried out on-site. When choosing instruments for testing, we must choose brands with good quality.

Introduction to applicable industries of mycotoxin detectors

06/11 1040

How should we choose testing instruments? When choosing together, we should focus on the quality of the product. Speaking of instruments, online residual chlorine analyzers have a wide range of uses. They are not only very accurate in detecting residual chlorine content, but can - DayDayNews

How should we choose testing instruments? When choosing together, we should focus on the quality of the product. Speaking of instruments, online residual chlorine analyzers have a wide range of uses. They are not only very accurate in detecting residual chlorine content, but can

Instructions for using online residual chlorine analyzer

06/11 1125

This is the 17th experiment we have explored together. At 16:00 on October 27, China's first private launch vehicle "Zhuque Nantaihu" was launched from the Jiuquan Satellite Launch Center carrying the microsatellite "Future". This is a relative comparison Although a small rocket - DayDayNews

This is the 17th experiment we have explored together. At 16:00 on October 27, China's first private launch vehicle "Zhuque Nantaihu" was launched from the Jiuquan Satellite Launch Center carrying the microsatellite "Future". This is a relative comparison Although a small rocket

A fun balloon-powered car experiment to learn about the principles of rocket launch

06/14 1282

Rocket propellant is a chemical mixture that burns to produce rocket thrust, consisting of fuel and oxidizer. Fuel is a substance that can be in a liquid or solid state and burns when combined with an oxygen-producing gas for propulsion. - DayDayNews

Rocket propellant is a chemical mixture that burns to produce rocket thrust, consisting of fuel and oxidizer. Fuel is a substance that can be in a liquid or solid state and burns when combined with an oxygen-producing gas for propulsion.

What is a solid rocket motor? How does it work?

06/14 1293

Please indicate when reprinting: [The article is reprinted from the official account: China Aerospace Science Popularization (id: space-more)] We all know that the universe is close to a vacuum. Although it is filled with extremely thin gases such as hydrogen and helium, it canno - DayDayNews

Please indicate when reprinting: [The article is reprinted from the official account: China Aerospace Science Popularization (id: space-more)] We all know that the universe is close to a vacuum. Although it is filled with extremely thin gases such as hydrogen and helium, it canno

Seriously, why can rockets spit fire when there is no air in space?

06/14 1904

After the rocket is ignited, it will spray flames toward the ground and produce a large amount of white smoke, which is very spectacular. Under the action of thrust, the rocket slowly lifted off. But did you know that white smoke is not caused by burning rockets? - DayDayNews

After the rocket is ignited, it will spray flames toward the ground and produce a large amount of white smoke, which is very spectacular. Under the action of thrust, the rocket slowly lifted off. But did you know that white smoke is not caused by burning rockets?

What? Isn’t the white smoke that comes out when a rocket is launched caused by rocket combustion?

06/14 1109

A launch vehicle from Astra Space Technologies, an emerging U.S. space company, failed to launch in Florida on the 12th and failed to deliver two weather satellites into the intended orbit. - DayDayNews

A launch vehicle from Astra Space Technologies, an emerging U.S. space company, failed to launch in Florida on the 12th and failed to deliver two weather satellites into the intended orbit.

The launch of the US Astra rocket failed, failing to put the weather satellite into the intended orbit

06/14 1406

On May 13, the fourth launch of my country's private commercial launch vehicle, "Hyperbolic 1", was ignited and launched from the Jiuquan Satellite Launch Center. Unfortunately, the rocket experienced flight abnormalities shortly after liftoff, and finally fell to the ground. The - DayDayNews

On May 13, the fourth launch of my country's private commercial launch vehicle, "Hyperbolic 1", was ignited and launched from the Jiuquan Satellite Launch Center. Unfortunately, the rocket experienced flight abnormalities shortly after liftoff, and finally fell to the ground. The

my country's "Hyperbolic" No. 1 rocket failed to launch three times in a row. Why is it so difficult?

06/14 1539