Q:Hey guys, theres a really hard question please help! 10 points!Why do specimans have to be coated in metals eg gold, before they can be scanned by an Electron Microscope? Please HELP!! 10 POINTZ

This is taken from the Erik Jonsson School of Engineering at The University of Texas at Dallas instructions for the Scanning Electron Microscope Operation: Sample Preparation (p9 of the pdf file): The sample needs to be electrically connected to the sample holder to prevent the electron beam from “charging” the sample and distorting the imageThis is usually done through conductive tapeWe have double and single sided Copper sticky tape or little Carbon sticky pads If you have a conductive sample this simple attachment will work fine If you have an insulator substrate with a conductive film on the top, the top film must be electrically connected to the Aluminum sample holderThis can be done with the Copper sticky tape looped around the edge to the top surface of your sample If your sample is an insulator, then you will need to coat it with a conductive material – i.eAu/Pd or Carbon So samples that are insulators have to be coated with a conductive material so that the sample is electrically connected to the sample holder to prevent the electron beam from “charging” the sample and distorting the image.

Q:Do people beleive Government is a slave to the people when they process you into FEMA camps during peacetime?

A Skylit Drive, Blessthefall, I see stars, Attack Attack!, A City Serene, As The World Fades, Atreyu, A Bullet For Pretty Boy, Dead Means Nothing, A Day To Remember, Divide the Sky, From First To Last, Her Words Kill, I Hate Sally, I Am Alpha and Omega, A Long Winter, On The Sidewalk Bleeding, Reclaim The Fallen, Roses Are Red, Shadows Chasing Ghosts, Silence of a Silhouette, A Stained Glass Romance, A Thorn For Every HeartThis is all I can believe of on the second.

Q:for a standard 350ml soda can, according to calculus, to minimize the surface area (material used to build it) of the can, the shape of soda can should be fatter than it is on the market today.so why did they design the can in its current shape?is it so people can grab it easier?i also noticed the can have thicker material on the top and bottom, is the reduced radius to help reduce material on these sections?

No.Whatever the fruit thing is, it can't charge your tabletThe only to charge it is through the charging port.

Q:Hey everyone I am doing this question for a friend who is struggling with the internet at the moment and cannot access it (Some sort of phone line issue) and bt are trying to fix it.AnywayMy friend has just bought a young female cat they have named Kara Melody , she is a lovely cat with a sweet temperament but she is eating my friends fiance's printer paper , she just paws it out of the printer and then either rips it with her teeth or claws it apartshe is properly fed with the correct cat food for her age and always has water and has other cat toys to play with.So is there any idea's that i could pass back to them to stop her eating or clawing the paper or is it something that they need to take her to the vet for professional advice.

Typically this is a list for cat scratching problems, but I don't see why it wouldn't help in this situation alsoAnything citrus smelling (maybe placing a orange, lemon etcscented freshener by the paper) Blowing air on them (balloon pump) Packaging tape upside down Putting aluminum foil down on the paper (cats don't like the sound of it) Shaking something noisy (like a can with coins in it) Water bottle Mainly just try to do something the cat doesn't like so when she starts getting the paper, she will associate eating the paper with something unpleasantI hope this helpsTell your friend good luck!!! EDIT: Luke Benke may be rightCats LOVE sitting on paper, so it might just be as simple as her wanted to sit on a piece of paper of her own:)

Q:If I'm cooking and I use aluminum foil instead of baking paper, would it make a huge difference ?

UhhNow I'm not saying where, but you CAN aquire them from 'Legal High' stores, adult shops and cigar storesIf noot just look for a Hookah or somethingYou'll be messing around for hours making it outta glass.

Q:I'm going to the desert with my DJI Phantom and it ll be left in the travel case inside the car for some of the timePossibly get up to 130 degrees or more in the carI ve researched how many of the Lipo batteries have caught fire and the only ones that have ever caught fire were while chargingShould I worry at all?

The best insulation to keep a spare battery (Li-Ion or Lipo) is to wrap in paperPaper takes up moisture and releaeses it quite quickly, thus avoiding shortcuts and rapid dischargeIf your device doesn't allow battery change or you want to avoid it for some reason, wrap the whole device in paperA regular newspaper page should do for a standard-sized phoneNEVER use a plastic bag, or even aluminum foil.

Q:Which do you prefer and why?I don't have a preference as my horse is barefoot but was reading up on shoe types and it got me curious.

yes i have tried them and they are delicious!!!!!!!!!!!!!!

Q:Can i use aluminium foil instead of parchment paper or baking sheets to line the pan when baking cookies?

Yes.you canI tried to use parchment paper once to bake cookies on.IT SMOKED IN THE OVEN! It made the cookies taste like crap.and the whole house smelled like something was on fireIt was awfulNow I only use aluminum foil when baking so that never happens again If it says to grease the pan.it's still a good idea to do that.just grease the top of the foilThings can still stick to the foil Just a tipShiny side of the foil goes up.

Q:would aluminum displace copper from a copper solution? and why?

Sort ofBased on the fact that aluminum is above copper in the activity series, we would predict that aluminum metal will be oxidized as copper(II) ions are reducedThe catch is that it often doesn't work out the wayFrequently, all one ends up with is wet aluminum, but no reactionAluminum is covered with a passivating layer of aluminum oxide, Al2O3, which prevents the aluminum metal from reacting with the copper ionsAcids will react with the Al2O3 layer, as will hydroxide ions and even chloride ionsAl2O3(s) + 6H+ - 2Al^3+ + 3H2O(l) Al2O3(s) + 2OH- + 3H2O(l) - 2Al(OH)4^- Al2O3(s) + 8Cl- + 3H2O(l) - 2AlCl4^- + 6OH- A common demonstration is to add aluminum foil to a solution of copper(II) ions and observe that no reaction occursBut when NaCl is added to the solution, a reaction occursIf aluminum metal is added to a solution of copper(II) chloride then all the ingredients are present to allow a reaction to occurChloride ions react with the oxide coating and aluminum metal reacts with copper(II) ions2Al(s) + 3Cu2+ - 2Al3+ + 3Cu(s)