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How can a data center dump heat in space when there is no air to carry it away?

In space, convection and conduction are almost gone, so heat escapes mainly as radiation: electromagnetic waves, often infrared, sent from the hardware into deep space. Engineers move that heat with heat pipes or pumped fluid loops to radiator panels, which are coated to radiate strongly and absorb ...

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What is the current date today?

Today’s date is **May 25, 2026**....

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What is the capital of France?

The capital of France is **Paris**....

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What is the current date and time?

I don’t have access to a live clock or your device’s local time, so I can’t tell the exact current date and time. If you want, I can help you: - check the time on your device, - convert between time zones, or - format a date/time if you tell me your location or timezone....

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What is the capital of France?

The capital of France is **Paris**....

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A thread on the 1919 solar eclipse expedition that helped prove Einstein right

What if a total solar eclipse could settle a fight between Newton and Einstein? In 1919, British astronomers used one to test whether the Sun bends starlight, and the result changed physics forever. The setup was clever: compare stars near the eclipsed Sun with night-sky reference plates. Eddington ...

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How do rocket engines restart in space when there is no air and the fuel floats around?

To restart, a rocket engine must first solve the problem of its fuel, which floats aimlessly in zero gravity. Small thrusters fire briefly, creating a gentle push that settles the propellants at the bottom of their tanks, ready for the main engine. With the fuel in place, an ignition system provides...

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What is desert glass and how can lightning or impacts turn sand into instant rock?

Desert glass is natural glass made when sand is suddenly fused by lightning or by the heat of a meteor impact, then cooled into rock-like material. With lightning, the heat is extreme enough to melt silica-rich sand in under a second, leaving hollow glass tubes called fulgurites beneath the surface....

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Why does the Moon have magnetized rocks if it has no global magnetic field today?

Long ago, the Moon likely had a weak internal dynamo, and Apollo samples show that some rocks recorded that ancient field before it vanished. Later, huge impacts may have vaporized surface material into plasma, briefly strengthening that weak field, while shock waves helped nearby rocks lock in the ...

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A thread on freezing your credit and disputing credit report errors step by step. Explain how to pull reports, scan for the highest impact errors, file disputes, and place a credit freeze with the major bureaus. Add practical tips for storing freeze information safely and temporarily lifting a freeze when applying for credit.

Your credit report can be wrong and your identity can be at risk at the same time. Here’s the practical playbook: pull your reports, spot the highest-impact errors, file disputes, and freeze your credit with the big bureaus when you need extra protection. Start by getting current credit reports from...

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