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Leopard gecko lizards on the rock, cute lizards that are easy to care for, eublepharis macularius, animal closeup; Shutterstock ID 2551815383; purchase_order: -; job: -; client: -; other: -

This week’s new questions

Which animals can recognise individual people? And does Earth’s mass remain constant?

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2X5MEN6 Sisters (2-3, 6-7) eating ice cream

When we eat ice cream, does it cool us down or warm us up?

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Exposures of clocks, watches, Time-Pieces of various kinds and periods. Photograph ?? Santosh Verma

Why are there 60 seconds in a minute and 60 minutes in an hour? Part 2

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Quantum correlation- 3d rendered image of quantum entanglement. Abstract background. Quantum mechanics background. Atomic structure, large collider, CERN concept. Muon Spinning particle, muon g-2, Higgs boson light speed neon stripes abstract image. Collision of Particles in the Abstract Collider.

This week’s new questions

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dish wash interior with plates and glasses; Shutterstock ID 132556751; purchase_order: -; job: -; client: -; other: -

Why do plastic items stay wet for longer in the dishwasher?

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3BCKRT6 Open artificial model human body with lungs and heart

Why is the heart not in the centre of our body?

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2C0KN5C Funny husky dog in glasses lying on the grass in a summer park

This week’s new questions

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A small silver car driving round the sharp bends of a country road in the Peak District, England. Low sunlight casting shadows on the s shaped curves.

Should I accelerate when driving over hills or keep to a steady speed?

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Illuminated globe from inside spinning, colourful earth globe ; Shutterstock ID 555407242; purchase_order: -; job: -; client: -; other: -

Given Earth rotates, can I travel by waiting in midair? Part 2

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circa 1950: A chubby man sees himself a few stone lighter in a distorting mirror made at the Pittsburgh Plate Glass Co. (Photo by Douglas/Three Lions/Getty Images)

This week’s new questions

What makes some mirrors flattering and others not? And if we painted every roof on Earth white, how much difference would it make to global temperatures?

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Why are there 60 seconds in a minute and 60 minutes in an hour?

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Why do so many birds like standing on one leg?

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This week’s new questions

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Given Earth rotates, can I travel by going straight up and waiting?

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