Question

Search any 4 indigenous invention that are eco friendly in nature and are of immense importance in contemporary time along with the name of inventors ❌NO SPAM THAT ANSWER WOULD BE REPORTED❌

Answer 1

Answer:

Portable wind turbine

Known as Trinity, this handy gadget uses wind energy to power your electrical devices. It comes in four different sizes to cater for all charging needs, from a smaller model for powering devices such as smartphones to a larger version capable of charging an electric car. Designed by Icelandic innovation company Janulus, it’s ideal for camping and can be folded down to an easily transportable size.

Saltwater lamp

The SALt Lamp is as simple as it is effective. Made using a glass of water and two tablespoons of salt, this lamp can provide a whole night’s worth of light. It has the potential to change lives in parts of the world where households don’t have access to electricity and its production is currently being aimed at non-profit organisations. And if salt isn't available, SALt Lamp can also run on seawater, which is a virtually limitless energy source.

Carbon positive house

Rather than just being carbon neutral (zero emissions), this house is carbon positive, meaning it produces more energy than it uses, which can then be fed back into the grid. Designed by Archiblox, it is the world’s first carbon positive prefabricated home and features inground tubes that help with cooling, solar panels, sliding edible garden walls, a green roof for extra thermal insulation and an airtight design to prevent energy escaping.

Life saving straw

This is an amazing invention that can help save millions of lives in third world countries where disease is rife and water is often undrinkable. Designed by Vestergaard, LifeStraw is a device that filters water. When you suck through it like a straw, the water is forced through narrow fibres which trap contaminants, removing 99.9% of waterborne bacteria and protozoan parasites, and preventing diseases caused by contaminated drinking water such as Hepatitis E, Dysentery, and Typhoid Fever.

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Answer 2

Four of the indigenous invention that are eco-friendly are liquefied petroleum gas , biofertilizer , drip irrigation ,silencers in vehicles

Explanation

• liquefied petroleum gas and compressed natural gas at two of the eco friendly fuel and helps to prevent the air pollution.
• Drip irrigation reduces the amount of water that is used for cultivation and prevents evaporation of water. The silencer in vehicle is used to prevent the noise pollution.
• On the other hand by biofertilizer are those substances which are naturally present in nature and reduce the chemical in the the ordinary fertilizer.

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Of these four scientific designs, choose the one that has a biased ...

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