Top 5 inventions can save humanity

From cars filled with smoke on the highway to factories that emit a multitude of dangerous toxic substances, our Earth is in ruins. Therefore, inventions to save the Earth are getting more and more attention.

Currently, when technology develops constantly, their bad impacts are constantly increasing in both quantity and level. In the face of such a bad prospect, many scientists around the world are still constantly studying to come up with useful inventions for the future of all humanity. Here are 5 typical inventions in this area.

1. Membrane filters seawater into fresh water

With this machine, we can filter seawater into fresh water that can be used daily thanks to a modern desalination filter. But there is one shortcoming: this product is quite expensive and unintentionally pollutes the environment because to make it will consume a lot of energy, emitting toxic or even greenhouse gas hazard sea ​​creatures.

Graphene filters turn seawater into fresh water.

Recently, researchers in the UK have developed a new graphene filter that helps limit the use of energy for desalination. This filter will be an effective solution for countries that often lack water for living.

In fact, the United Nations has forecast that in the next 10 years, about 14% of the world's population will not have enough water needed for daily living.

2. Mini planes for pollination

Most of the foods you use every day like apples, carrots, chocolates or coffee need to be pollinated to produce fruit. About 75% of agricultural crops in the world need the help of animals such as bees, butterflies . to be able to pollinate.

Researchers tested mini planes to pollinate a flower.

However, according to a United Nations report, these animals are at high risk of extinction when the number of individuals is reduced. In the wake of this alarming scenario, researchers in Japan are experimenting with mini planes that transport pollen from one plant to another to replace insects.

Tests on a giant flower have been successful, however, in order to replace the bees' work, there is still much to do to improve this tool.

3. Biodegradable biological bullets

This idea was given by the US military. Recently, they have proposed using biological ammunition during training instead of previous powerful bullets.

'Magical' bullets can decompose themselves that American troops are aiming for.

According to the US Department of Defense, the shells that were released when exploded could take hundreds of years to break down. They also contain toxic ingredients that are dangerous to soil resources, and water sources.

The US Environmental Protection Agency also gave evidence that military vehicles have caused heavy pollution in many areas of the country.

Therefore, the US Department of Defense is studying new types of ammunition that can reduce this pollution problem. In addition to the ability to biodegrade, this type of ammunition is also hoped to be able to contain breeding products to produce food for animals after being used.

'Through this program, our effort will bring the seeds that make up natural plants that remove pollutants in the ground while also accelerating the process of self-decomposition.'

4. A type of 'plastic' made from plants, does not pollute the environment

Sometimes ideas can come from unexpected circumstances. For Indonesian businessman Kevin Kumala, everything happens on a rainy day when he looks out on the street and sees most people use raincoats to avoid getting wet.

He said: 'It is alarming that these toxic raincoats are only used a few times and then discarded but cannot be decomposed.'

Potable plastic: release for the future?

Therefore, he and his colleagues conducted a study to find a new plastic that can decompose itself after use. And they succeeded in producing raincoats, bags and food packaging made from cassava, a cheap, popular plant in Indonesia.

In 2014, he founded Avani Eco, which produces 4 tons of cassava-based products every day. He hopes to continue producing more products. He is also confident that his products can be used as a drink after use.

5. A new type of aircraft only emits steam

Although it can carry only 4 people including pilots, the aircraft operates on hydrogen, oxygen and is powered by this electricity, which has a very special point. That is, it only emits steam during use.

The aircraft runs on hydrogen gas, emitting only steam.

According to André Thess, he works at the German Aeronautics Center (DLR), who participated in the construction of this aircraft: 'For the first time an aircraft operates with hydrogen gas that can carry more than one. people".

Project HY4 hopes in the near future it is possible to build an environmentally friendly 'air taxi' system to move from city to city.

Mr. Josef Kallo, project leader of HY4 said: 'I will for example if someone wants to go from Irvine to Ventura or vice versa in the Los Angeles area. They may take between an hour and a half to three hours if traveling during rush hours by regular means. However, if applied, these aircraft will help to complete everything in 35 to 40 minutes. And in controlled airspace, we can have multiple aircraft operating at the same time. "