Pandalous. There is a great deal that could be said about all this.
It is true that for a time people thought that axiomatizing maths and science is a great thing to do and yes it is often appropriate where clarity is needed and we want a final system. It is the final form of a theory. (If physics stops for awhile they like to sit around and axiomatize stuff). If we try to do that for mathematics, it goes like this: All of maths can be derived from number theory.
For example even geometry can be coordinatised so it's really numbers. I.e. given the axiomatic basis can we guarantee that we won't, using a chain of reasoning, obtain a result that directly contradicts another result, also derived by a chain of reasoning using the same axioms and rules of inference? Maths had better be consistent or we are in a mess. Godel (1930s) came along and thought about this. Is there a workaround? Is maths consistent?
Now, Godel's result is a limiting result. Now to Molly's question. Should we be frightened? The Case of the Stolen Laptop: How to Encrypt, and Why. There’s an investigator I know, top of her profession, who once put her laptop in the trunk of a cab. By the time she reached her hotel, the laptop was gone. This happens thousands of times a year at airports, train stations, libraries and coffee shops. Sometimes the thief wants your hardware. Sometimes your data turns out to be more valuable, or its loss more damaging. (It’s pathetically easy to find examples.) In this case our investigator was onto something hot. And no, your log on password is not an obstacle. What to do There’s no single answer to this problem, but one of the first things to think about is encrypting your computer. Turn Your Old Router into a Range-Boosting Wi-Fi Repeater.
I spent WEEKS trying this and I never successfully accomplished it.
I spent less time configuring a cantenna and Alfa USB WiFi cards than I did ramming my face into my wall repeatedly until I fell unconscious. Flagged @Philip Han: Any special security/network considerations that got in your way? @Kevin Purdy: Yes, a wall that I kept repeatedly ramming my face into until I fell unconscious after having multiple issues. Hahaha, I guess that the problems were: -Two differently branded routers -Two different OS's (I should of run DD-WRT on both) -AES/WPA2 Encryption.
Virtual Water. How much water does it take to grow a hamburger? USGSWater Scien. What is the water content of things?
Water is needed to grow not only everything we eat but also to produce almost all the products we use every day. This water is either supplied by nature as precipitation and/or added by people during the growing/production process. You can't tell by the size of a product or the appearance of a food how much water was actually used to produce the item. Use to form below to enter your guess on how much water is used to produce some common foods and products. But, please realize this whole exercise is meant to give you an estimate of how much water is needed in food and product production. Yet another consideration is how far back do you go in the chain of production to estimate water use?
The data here were taken from two sources: Choose how much water it takes to make/grow: UNESCO Water Footprint.
The Designers Accord. Innovation Happens Elsewhere.