Yemeni influencer Hashem Al-Ghaili has created a massive online following by spreading his love of science with followers around the world.

Part of being an entrepreneur in the 21st Century is knowing how to work social media. For some, it can even lead to a lucrative career that lets them travel the world, or even find a livelihood by live-streaming daily tasks like shucking shellfish.

But some people are using the internet's reach to promote science education - and a young Yemeni man has found close to 20 million people who are willing to watch and listen.

Have a look at the video above to see how science enthusiast Hashem Al-Ghaili became a media consultant and public speaker by uploading short videos of his own onto Faccebook.

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