He answered that he would drop it off the roof and measure the time it took to hit the ground, and was failed on the question by the teacher, who told him not to play silly buggers but answer the question properly. There’s a probably apocryphal story about a noted physicist - he varies from story to story, but in the version I heard it was Max Planck - who in a test at school was asked how he would use a barometer to measure the height of a building. Although my experimental setup was superior: chuck the TI-89 at a zombie’s head. I was also going to propose some experiments demonstrating Newton’s laws. Hopefully someone else will come along who can give you some better advice.
I am now a philosophy major at university and have no use at all for my calculator in any of my classes. Obviously my memory on this topic is pretty hazy as it was a while ago I was using my TI-86. Only a minor annoyance as far as I saw it. Any programs I wrote were saved on my computer along with all the other stuff, so just load them right back on. I could just throw them right back on there. I guess I just never saw it as a big deal. Actually, now that I think about it I may have lost the stuff in the calc memory due to bad programs a few times. Obviously some of the programs crashed and were generally terrible, but this just meant deleting it and moving on.
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I never had any troubles with mine and I used to download tons of stuff to my calculator. I’d just advise being a bit careful perhaps with what you download. I can’t really say much about the calculators defense mechanisms. Does the calculator have some kind of backup or defense against crashing or infection?
Only problem is I have heard alot of calculator downloads are infected or can crash your calculator.