Frequently Asked Questions about the Universe
- Downloads：7441
- Type：Epub+TxT+PDF+Mobi
- Create Date：2021-11-15 03:18:57
- Update Date：2025-09-06
- Status：finish
- Author：Jorge Cham
- ISBN：0593189310
- Environment：PC/Android/iPhone/iPad/Kindle
Reviews
Marie
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Mars is beautiful and looks like the Arizona desert on a hazy day， but it is also not a great option for us to live on as it doesn't have a planet wide magnetic field which would protect it from the Sun's deadly solar winds。 The deadly radiation blew away Mars' atmosphere and Mars gets REALLY cold。Mercury barely rotates， which means one side is always fired to a crisp and the other side is always frozen solid。Jupiter and Saturn are basically enormous balls of gas。 Even if you could survive thei Mars is beautiful and looks like the Arizona desert on a hazy day， but it is also not a great option for us to live on as it doesn't have a planet wide magnetic field which would protect it from the Sun's deadly solar winds。 The deadly radiation blew away Mars' atmosphere and Mars gets REALLY cold。Mercury barely rotates， which means one side is always fired to a crisp and the other side is always frozen solid。Jupiter and Saturn are basically enormous balls of gas。 Even if you could survive their atmospheres of mostly hydrogen and helium， there wouldn't be anywhere to stand。 Neptune and Uranus are also no picnic。 These planets are called ice giants because， well， they are giant balls of ice。Time is the thing that orders and connects all the different ways that the universe can be。 So if time stops， all the rules go out the window。 The death of order。 Cause and effect no longer have meaning and the universe would exist in a state of disarray。If time is the thing that allows the universe to change， when time stops， the universe might。。。。freeze。 。。。more
Kathleen Gray
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Okay so you might not get a complete answer- there's a fair amount of but。。。 here- but golly， this will make you think。 I liked that big questions about aliens， time travel， killer asteroids， and life on Mars （well， the possibility of living on Mars） are taken seriously。 These are real and tough questions that wander around in people's brains and Cham and Whiteson have done their best to provide answers that while based in physics but not necessarily in practicality， will make you think again。 I Okay so you might not get a complete answer- there's a fair amount of but。。。 here- but golly， this will make you think。 I liked that big questions about aliens， time travel， killer asteroids， and life on Mars （well， the possibility of living on Mars） are taken seriously。 These are real and tough questions that wander around in people's brains and Cham and Whiteson have done their best to provide answers that while based in physics but not necessarily in practicality， will make you think again。 It's written for the layperson in a conversational way that might lead readers down the rabbit hole but doesn't leave them there。 It's leavened with humor （always a plus）。 Thanks to Edelweiss for the ARC。 I learned a great deal- highly recommend。 。。。more
Geoff
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