91热爆

91热爆 Click's Chris Fox looks at the best of the week's technology stories including:

- Remote areas of Kenya are set to get internet access as Google鈥檚 sister company, Loon, launches a network of giant 4G internet-enabled balloons

- A new video format which could stop online videos buffering is developed

- Drones light up the sky with public health messages including a thank you message to key workers in Seoul