### Flat vs. round Earth

Omni's not-flat Earth calculator helps you perform three experiments that prove the world is round.

Chemistry might seem intimidating and counterintuitive at first, but it is also extremely useful. So how can you learn everything about chemistry without effort? We don’t know the answer, but we can help you solve chemistry problems faster and more efficiently thanks to our chemistry calculators. From calculating concentrations to solving important chemistry equations, we have a calculator for each of your needs. You need to figure out activation energies? We’ve got you covered. Would you like to know the boiling point at different altitudes? There’s a calculator for that. You prefer vapor pressures and neutralizations? Don’t fret! We also have calculators to help you with these problems. Heck! We even have a calculator to help you understand the half-life of radioactive elements.

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Omni's not-flat Earth calculator helps you perform three experiments that prove the world is round.

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The sleep calculator can help you determine when you should go to bed to wake up happy and refreshed.

Do you always remember to put on sunscreen before going outside? Are you sure that you use enough? The Sunbathing Calculator ☀ will tell you when's the time to go back under an umbrella not to suffer from a sunburn!