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Science
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July 9, 2019

This South African invention allows drones to plant hundreds of trees in minutes

Two drone enthusiasts have devised a new invention that allows drones to plant large numbers of seeds in minutes.

South African Andries Louw and Australian Andrew Walker built a pneumatic firing module that shoots seeds into soil.

It can spit out two seeds per second at velocities of anywhere between 150 and 300 metres per second. This is faster than the cruising speed of a passenger jet.

The module, called it Podder, can attach to the bottom of popular drone models. Louw and Walker estimate that a team of two, flying 2 drones, can plant up to 40,000 seeds into into the ground in a day. In just ten minutes they can plant what the average human can [...]

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April 17, 2019

HOW TO STAY SAFE WHEN THE TEMPERATURE DROPS

Working in cold conditions isn’t just uncomfortable, it can be dangerous. Frostbite, numbness, dehydration and hypothermia are real concerns from chilly outdoor weather. If you’re working outdoors this winter, be aware of the dangers and stay safe. In this article, we’re looking at 6 tips for staying safe in the cold.

1. STAY WELL NOURISHED BY EATING AND DRINKING ENOUGH Make sure to drink enough fluids, as you dehydrate faster in cold weather conditions. Dehydration causes headaches, dizziness and fatigue, and it’s important to stay alert outdoors. Eating enough food during the day, especially fats and carbohydrates, is also important. Your body uses those nutrients as energy [...]

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April 17, 2019

GOOGLE HAS OPENED ITS FIRST AFRICA ARTIFICIAL INTELLIGENCE LAB IN GHANA

A rural farmer in Tanzania hovers over a wilting cassava plant with her phone. In seconds she gets a diagnosis of the disease affecting her plant and how best to manage it to boost her production.

The farmer used an app on her phone based on TensorFlow, Google’s Artificial Intelligence (AI) machine that the company opensourced to help developers create solutions to real-world problems.

When people think of Artificial Intelligence, they most likely think of scenes from science fiction movies, but in reality, it applies to everyday life from virtual assistants to language translation on Google, says John Quinn, an AI researcher.

Google now wants to position [...]

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March 19, 2019

Professor follows God’s blueprint as he puts SA on map of innovators

Prof Mashudu Tshifularo about innovation, he believes the world should invest in medical innovation for a healthier future.

 

Tshifularo recently became the first person in the world to transplant a 3D-printed bone into the middle ear of a patient with hearing loss.

 

But, he is expecting criticism from his academic colleagues.

 

“Let them come. No one has been doing it. This is unique,” says he man who became a professor at the former Medunsa University at 35.

 

Last week, Tshifularo, 55, and his team from the University of Pretoria, performed the world’s first 3D middle ear transplant on [...]

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