From the 'adding salt to boiling water for pasta cooking' discussion, am I right to think that the town council workers put salt on snowy/icy streets to raise the melting point of ice/snow?
2) How do 'snow tyres' work? Are they merely adding traction and weight, or something more?
Thanks in advance.
But it isn't entirely straightforward. Given the wrong temperature conditions, not enough salt can lower the freezing point just enough to make ice/snow melt during the day but freeze again at night, but now it's smooth sheet ice and very dangerous.
There aren't any new elements to find before that...perhaps isotopes, but not new elements as the way we define them (i.e. atomic number) has an element from number 1-103 all accounted for.
A proper scientist will be able to explain this better though!
1. It would help with childbirth if the mother is larger
2. Also with defence of their young, etc.
Then again maybe the male is bigger for combat and mating advantage bla bla bla...
Okay, again.
Based upon everything that is currently known/understood concerning the make-up of atoms (everything that is currently considered as scientific fact) it is possible that the periodic table could become longer but there would not be any insertions into the existing set-up of atoms. i.e., we're not gonna all of the sudden have a new atom that fits in between Carbon and Nitrogen.
There are two things that determine the way the periodic table is set-up, the main thing being the sequence in which they are arranged going across a row. An atom is the atom it is with all its inherent properties because of the number of protons it contains. Hydrogen has 1 proton, carbon has 6, oxygen has 8. If you change the number of protons, for example in an atom smasher/particle accelorator, you change what atom it is and it's properties. The number of neutrons can change (hence where isotopes come from) and the number of electrons can change (the cornerstone of chemical reactivity). Currently we have sequential numbering based upon the number of protons going from 1-118. But still missing 113-115 and 117.
The second property is a bit more complex but it has to do with the orbitals which are mathematical representations of where the electrons reside and how many respective electrons they can hold for each. Elements going down a column for the most part also have similar properties and the same number of electrons in their valence shell albeit at different energies.
The beauty of the periodic table as it is currently arranged is that when it was originally developed there were spaces left for atoms which had not yet been discovered, and then when they had they fit perfectly into the gaps.
Hope that answers your question.
And obviously, it is very possible that all of science could be turned on it's head in 50-100 years and they might look back at us and think how cute and quaint and antiquated we all were.
What about Cargen and Nitrobon?
You are totally ignoring my favourite atoms and they are both between Carbon and Nitrogen!!!
Scientists, Astrologists, Faith Healers..... all the same to me.
"Mr. Chemistry Set"... read the name of the post.
No thats what I'm talking about!!
Ctrl+Alt+Delete doesn't count mate.
http://en.wikipedia.org/wiki/Exotic_atom
Saw a poster of some of these at ISIS when I was last at the Rutherford-Appleton Labs. Nice bird spotting round there, even if it did mean spending most of the day sat in a large hanger doing not very much.