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Science & Technology

Why you can’t compare Covid-19 vaccines

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What a vaccine’s “efficacy rate” actually means. Subscribe to our channel! http://goo.gl/0bsAjO In the US, the first two available Covid-19 vaccines were the ones from Pfizer/BioNTech and Moderna. Both vaccines have very high “efficacy rates,” of around 95%. But the third vaccine introduced in the US, from Johnson & Johnson, …

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Samsung Galaxy Unpacked 2021 in 3 minutes

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At its second Unpacked event of the year, Samsung officially unveiled three of its next A-series phones: the Galaxy A52, A52 5G, and A72. Key specs across the board include IP67 water and dust resistance, brighter screens with faster refresh rates, and a 64-megapixel main camera with optical image stabilization. …

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