Janus's latest activity
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Janus replied to the thread Undergrad Another Time Dilation Question.He would not physically "see" a pancaked planet, that is something inferred by applying Relativity. What he would physically see is... -
Janus replied to the thread Today I Learned.Not quite that old, but it was a bit small, just a two-seater... -
Janus replied to the thread Today I Learned.TIL that the Piper PA-38 Tomahawk, the plane that I took my initial flight lessons and solos in ( over 40 decades ago), is, on two... -
Janus replied to the thread Are these rabbit pellets???.Definitely look like rabbit pellets. We raised a few rabbits when I was in High school, and they look very familiar. If you have a... -
Janus replied to the thread How effective is nuclear propulsion?.Given that this type of engine have about twice the exhaust velocity of the Shuttle's main engines, then if you were able to substitute... -
Janus replied to the thread How effective is nuclear propulsion?.To reach Alpha Centauri in 100 years, you would need to reach a speed of least 0.043 c (12900000 meters/sec) Given the exhaust velocity... -
Janus replied to the thread How effective is nuclear propulsion?.For simplicity's sake, we will assume a shuttle in orbit with a fully fueled external tank. IOW, we won't factor in the Solid fuel... -
Janus replied to the thread An "Untranslatable" Word?.While Finnish does have words for "yes" and "no" It also does something similar. So for example, The question Maalaatko taulua?" ( Are... -
Janus replied to the thread An "Untranslatable" Word?.The word "Sisu" in Finnish comes to mind. One attempt that tries to define it goes like this " Extraordinary determination, courage and... -
Janus replied to the thread Convert Circular motion into figure-8 shaped loop.Of course, now you inspired me to do a more physics engine driven example. In this animation, the boxes actually constrain the cylinder... -
Janus replied to the thread Convert Circular motion into figure-8 shaped loop.Since the original animation was just to show the basic idea, I didn't include those types of restraints as it would be simple to do... -
Janus replied to the thread Convert Circular motion into figure-8 shaped loop.The top one was done using armatures, which act like a chain of bones, in this case, 2 bones. The base of the chain is parented to the... -
Janus replied to the thread Undergrad Light clock treating horizontal and vertical motion differently?.While a postulate is not a fact, it we can make predictions as what would happen if it were true. This, in turn allows us to devise real...

