In the early morning hours of August 26, South African long-distance runner Sibusiso Kubheka became the first person to complete a 100-kilometer run (that’s 62.14 miles) in less than six hours. He ...

A Ukrainian company is developing an unjammable fiber-optic drone that can roam nearly 100 kilometers from its operator — more than doubling the reach of current models — in a bid to radically extend ...

Like decimals and fractions, percentages are a way of expressing proportion. Proportion tells us how much of one thing there is in relation to the whole. The sign % stands for 'per cent'. Per cent, in ...

A Ukrainian company says it's developing a new fiber-optic drone with a range of up to 100 kilometers. This would be a major upgrade for what has emerged as one of the most important weapons in the ...