isanameaname
isanameaname t1_ixycsxh wrote
Reply to comment by ---AI--- in Returning to normal relations with Russia would be a mistake, says Lithuanian president by hieronymusanonymous
And occupation of course.
isanameaname t1_ivx9d88 wrote
Reply to comment by Spaceguy5 in NASA leaders recently viewed footage of an underwater dive off the East coast of Florida, and they confirm it depicts an artifact from the space shuttle Challenger by marketrent
They had been partially failing since early testing but that partial failure was deemed acceptable because they failed in a way which was thought to be within acceptable levels of risk:
https://en.wikipedia.org/wiki/Space_Shuttle_Challenger_disaster?wprov=sfla1
Fun fact: it wasn't.
> Evaluations of the proposed SRB design in the early 1970s and field joint testing showed that the wide tolerances between the mated parts allowed the O-rings to be extruded from their seats rather than compressed. This extrusion was judged to be acceptable by NASA and Morton Thiokol despite concerns of NASA's engineers. A 1977 test showed that up to .052 inches (1.3 mm) of joint rotation occurred during the simulated internal pressure of a launch. Joint rotation, which occurred when the tang and clevis bent away from each other, reduced the pressure on the O-rings which weakened their seals and made it possible for combustion gases to erode the O-rings.
isanameaname t1_ja1jl7f wrote
Reply to comment by x3Smiley in 1,000 march in Helsinki to demand peace in Ukraine by chippychipper444
They didn't read the article, and therefore don't understand that this was an anti-Russia demo.