Is there a better substitute than rubber?

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The discussion centers on finding alternatives to rubber for bridge bearings. Participants inquire about specific applications to provide tailored suggestions. Suggestions include exploring springs and dampers as potential substitutes. The conversation emphasizes the need for detailed information to identify the most suitable materials. Overall, the quest for better substitutes highlights the importance of material performance in engineering applications.
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Bridge rubber bearing, is there a better substitute than rubber?
 
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seismic isolation be said:
Bridge rubber bearing, is there a better substitute than rubber?

Springs and dampers? Can you please say a lot more about your application? The more information you can give us, the better we can try to help you.
 
Somewhat separate from the coffee advice of “buy whole beans, grind fresh at home daily”, I'm looking to understand the factors that contribute to purchased ground coffee losing freshness after opening (oxygen, humidity, temperature, time, other?). I'm assuming oxidation is the main factor, assuming normal room temperature and mid-range humidity. It appears (I'm having trouble finding good info on this) that a high quality modern pre-ground coffee is packaged in a way that maintains...

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