Kısaca
Most of the universe may be invisible: dark matter emits no light, yet gives itself away through gravity. Galaxy rotation and lensing hint at an unseen ‘skeleton.’
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Kısaca
Most of the universe may be invisible: dark matter emits no light, yet gives itself away through gravity. Galaxy rotation and lensing hint at an unseen ‘skeleton.’
Atomic clocks keep time by counting an atom’s ultra-regular vibrations billions of times per second. That’s why GPS can drift if timing slips by mere nanoseconds.
Black holes look like perfect sinks, yet quantum effects can leak energy. Over immense timescales, that leakage can reduce a black hole’s mass until it fades away.
Neutrinos interact so weakly with matter that most pass through Earth without leaving a trace. Trillions may pass through your body every second.
Mantis shrimp can distinguish light in unusual ways using many photoreceptor types. Unlike our three-channel color system, it uses a more segmented spectral sampling.
Douglas Engelbart"s 1964 invention. Wooden box, two metal wheels, and a cable - that"s all.
The human brain produces at least 1460 dreams each year. These numbers are a reflection of the subconscious that gets lost in the depths of sleep.
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