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टिड्डी दल के आगे बेबस किसान
umans are obsessed with speed. Recent months, for instance, brought news that students in Germany have broken the record for the fastest accelerating electric car, and that the US Air Force plans to develophypersonic jets that would travel at more than five times the speed of sound – that’s speeds in excess of 3,790mph (6,100km/h).
Those jets would carry no crew – but not because humans can’t travel at such high speeds. In fact, humans have already travelled many times faster than Mach 5. Is there some limit, however, beyond which hurtling bodies can no longer bear the strain of speed?
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