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The speed of light is (generally) defined as an absolute limit of velocity. But is that relative to a stationery observer, or as a general velocity? Do we have any way of knowing what our current...
while looking at a maths revisioni looked at reaaranging formulas, but there was something that confused me. I know the density is mass / volume, but i've always done it as g/cm cubed, or another...
The MOD are saying I need red warning lights on turbines with hub height 18.3m and blade tip approx 25m, about 2 miles from helicopter base. Does anyone know of legislation about this?
okay, re-post from chatterbank. let's see what you scientists think! today I wore a lightweight scarf, looping once around my neck, the ends hanging equally down my frontage, right and left. why does...
Can anyone offer a clue to a word that appears to be 'remifromibus'. This unlikely word is probably spelt wrong and may have 1 or 2 or even more letters wrong. The writing was written by a doctor and...
Please could some whizz tell me how I can covert 100g/m2 to a tog rating? I am buying a ready bed for my toddler with an integrated sleeping bag and it states that the bag has a warmth value of...
We're making a very simple mobile for my son's Easter egg competition - sun, moon and oeuf (ahem). Where should I put the moon - ie behind or in front of sun or earth?
Thanks in advance...
In one of his Maths books the author Martin Gardner talks about the following thought experiment. Imagine that you make contact with a being from some far part of the galaxy and communicate with him...
I was doing some revision, and whilst looking on a periodic table of elements i realised that there is no j on the p.t.o.e. I am i right or did i miss something, i'm sure i checked the lanthanoids and...
I wasn't sure where to put this, but science seems as good as anywhere. We hear a lot of concern about 'landfill' , 'landraise' and seas being polluted, but why is rubbish disposal so problematic when...
Hello to everybody! I'm from a senior student at the Linguistic University from Russia and I'm carrying out a scientific research on the topic "English euphemisms in the sphere of human beings'...
Hello! I’m a foreign senior student, who is currently carrying out a scientific research, centered around British national character and would appreciate it greatly if you could lend me a...
im doing some revision about lenses and here's something i don't quite understand. if you're given the focal length of an object, say 40cm and you know that focal length equal 1/power how would you...