Is Einstein’s theory of gravity still relevant — we put it to its toughest test yet

For more than 100 years, Albert Einstein’s general theory of relativity has been our best description of how the force of gravity acts throughout the Universe. General relativity is not only very accurate but ask any astrophysicist about the theory and they’ll probably also describe it as “beautiful”. But it has a dark side too: a fundamental conflict with our other great physical theory, quantum mechanics. General relativity works extremely well at large scales in the Universe, but quantum mech

Ebikes sped from zero to critical mass worldwide in 2021

If there’s one segment in the mobility sector that did spectacularly well in 2021, it had to be ebikes. This year we saw investments in ebikes explode. Many companies used the funding for R&D and market expansion. We also saw legal and infrastructural amendments in the US, UK, and EU to promote ebike ownership, and a series of new business models. Let’s take a look: Notable ebike investments in 2021 Rad Power ebikes had a bumper year for funding. 2021 was a fantastic year for ebike investments:


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