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Posts by Olin Lathrop
The frequency of the vibrations is only one of many considerations. To "granulate" rock, the vibrations have to cause large tension forces in the brittle material. The wavelength of the vibration...
Yes, an infinite number of ways. Description Lundin and Monica have already described starting at the north pole, and Monica added a second method near the south pole. The south pole method can ...
Today we take multi-player first-person view computer games for granted, but what was the first one? When was that? What did it run on? Who were the players? What was it like? Any interesting ...
If you can do it with your mind, then why can't everyone do it, and why are there wizards with inherently different strengths? It is like many other abilities we are already familiar with. Some p...
Tankwar, 1978 I created Tankwar in 1978 at the RPI (Rensselaer Polytechnic Institute in Troy, New York) Interactive Computer Graphics Center (ICGC). The ICGC had two Prime 750 computers, each wit...
You're not really using these dice as dice, but as markers. It sounds like you won't be "rolling" these dice, and therefore expect an even outcome between landing on each of the 6 sides. Paint th...
Do the math! Calculate the present value of each loan. Add the buy down amount to the cost of the loan with the lower interest rate. Whichever is lower wins. That said, there are some additiona...
Most everyday electrical wiring has two wires Well, no. Nowadays you usually get hot, neutral (or "return"), and ground. At least here in North America where houses get power from the secondary ...
Yes. One answer is the five exterior line segments one color and the five interior line segments another. The reasoning is that all 10 of the triangles you care about have both exterior and inter...
There are probably many possible answers, but here is one: One answer
Solution Beta can always win. Solution logic For a player X to win, there have to be 1-4 marbles left. For that to be forced, there need to be 5 marbles left before that for player Y. You ca...
Answer Solution method First note the number of connections each node has. Since the numbers at the end of the sequence have only one connection instead of two for inner numbers, place the e...
Answer Solution method First count how many As, Bs, and Cs there are, which is 6 each. That means we are looking for a break that leaves 3 on each side. There are a total of 18 letters, so ...
Answer The pattern is 1, 1-2, 1-2-3, 1-2-3-4.
What most instances of this trope miss is that the forces from these super fast and powerful limbs have to go somewhere. That rules out silliness like the Bionic Man and your super-strong soldier ...
The hose is probably coiled up normally. When there is no water pressure, there is little force trying to uncoil it. When water pressure is increased in the hose, the little extra diameter from u...
The first thing I would try is to replace the dimmer. New dimmers work differently than old dimmers, at least the right kind of new dimmer. Old dimmers worked by turning on their output for part ...
Let users decide We don't need a policy for this. Personally, I wouldn't post a deliberate duplicate. Sometimes it will happen due similar answers being written at the same time. That's OK. I ...
There is already an answer, so I'll show a way the answer can be derived with simple logic without requiring fancy math most here have probably never heard of. Since there are 8 unique patterns, t...
We have to understand that a Q&A worldbuilding site isn't going to support all things all worldbuilders want to talk about. We need to focus on what fits well with our Q&A format. One thi...
Spewing fire is done while exhaling. The same mechanisms that push air out of the lungs push the acetylene out too, when the creature wants to. Since this is mutually exclusive with inhaling, the...
Current lithium ion batteries are best stored for long life at around 70% of full charge. However, getting there and maintaining that for typical home power tools may be more trouble than it's wor...
What filter stages or combinations are important for an average residential consumer getting municipal water? None. Municipal water plants already do all that for you. They also have to test the...
I would like to get a picture of the general supporters (those who are "okay" with this) for a Worldbuilding community. There is already a mechanism for this. Let's not confuse things by creating...
You haven't defined exactly what features are part of "smart" versus "dumb". What most people consider "smart TV" features require a network connection. No matter how smart a TV is, if you don't ...
