Search found 12 matches
Search found 12 matches • Page 1 of 1
Lightbot is a nice coding game that gradually introduced symbols like arrows and springs for directing the robot around. In addition to the old flash version, I found that it's also on iPad, Android, and Amazon tablets. When my nephew came over recently, I showed loaded it up on his, and he did pret...
- Mon Mar 25, 2019 4:25 pm UTC
- Forum: Science
- Topic: Verifying physics at home
- Replies: 15
- Views: 2126
There's instructions on Instructables for making a spectroscope by using a CD as a diffraction grating, though I'm not sure how well that'd work outside the visible light range.
Another way of putting it might be compassionate versus those who do so callous people? I wasn't sure if that would be an apt descriptor before, or going too hard on the disfavored group, but Trump defining said group makes the latter seem much less likely. Then again, would a polished "classy&...
- Fri Mar 22, 2019 5:54 pm UTC
- Forum: Serious Business
- Topic: Being Rich is Against Anyone's Rational Self Interest
- Replies: 37
- Views: 4133
Given that most money now gets produced via a fractional reserve banking system in the form of credits and debits on digital ledgers, it seems odd to build an argument on the idea of their being a fixed supply of money in circulation that needs to be conserved. Aside from that, I agree both with the...
I think raucous versus demure gets at the dichotomy Phforrest was trying to convey pretty well. As for this side-discussion on social media, I ought to take the time to write down a description of how I think I'd like a distributed communication platform to work some time. Scuttlebutt and Solid are ...
- Tue Mar 19, 2019 7:21 pm UTC
- Forum: Science
- Topic: Miscellaneous Science Questions
- Replies: 2949
- Views: 709757
Given the energy density/vacuum energy of space as some value, and the Bekenstein bound as an upper limit of the information content of a region of space with a finite amount of energy, is it meaningful to talk of a vacuum information content? Would it make sense to try and find some other way of me...
- Sat Mar 16, 2019 5:38 pm UTC
- Forum: Language/Linguistics
- Topic: Is linguistics a real science?
- Replies: 60
- Views: 5595
Linguistics is a useful area of knowledge, helping us mantain the consistant meaning of formal statements over time, itself a crucial aspect of the sciences. So really, it's a choice of whether to classify it as a sceince, or define science such that useful bodies of knowledge that science relies on...
- Sat Mar 16, 2019 5:08 pm UTC
- Forum: Science
- Topic: What if the second law was breakable?
- Replies: 72
- Views: 7127
My understanding of entropy currently derives from five concepts: Non-cyclic time, physics in which the universe's next state can be determined by its current state, the pigeonhole principle, entropy as information, and the Bekenstein Bound. To start off, let's say time is linear rather than cyclic:...
- Sat Mar 16, 2019 12:52 am UTC
- Forum: Individual XKCD Comic Threads
- Topic: 2121:"Light Pollution"
- Replies: 41
- Views: 6773
Hasn't biology found a way yet to make species of insects/funghi that love one particular spikey invasive plant (in a not-so-symbiotic way)? Or any particularly invasive plant for that matter, because we're getting more and more of those due to all our world-wide transport. Such insect/fungi would ...
- Sun Mar 10, 2019 6:45 am UTC
- Forum: General
- Topic: Who the dickens are you?
- Replies: 10922
- Views: 2347756
Greetings! Things I very much like: ⋅ various aspects of machines, including their appearance, structure, history of development, and philosophy of design ⋅ biology, especially cellular biology, and as the intersection of this and the above, bionics ⋅ craft/cooking/DIY ...