Howlers of the week 1999-2000
These are all genuine sentences and paragraphs that were written by students in their write-ups for the 2nd year practical on High Temperature Superconductivity. Remember that all spelling mistakes, grammatical errors, and errors of logic are all entirely theirs, and have been reproduced exactly as they appeared on the student's script.
- Thus, process engineering works at the edge of pure science
and alchemy; 75% experience, 20% patience and 15% luck is
very often the only way to get a good process.
- The net effect is that the etching occurs behind the front of
- The easiest way to couple with the microwaves is to insert a
dielectric tube into a rectangular cavity.
- While the ion density is controlled by the RF power on the coil,
a power supply powered to the substrate can control the ion power.
- This is plotted in the garaph below.
- This short of behaviour depends on the short of gases.
- A region around the tip appears with just ions or neutral spices.
- Such particles of opposite sing shielding the tip create a shield
to the particles with the same sing.
- This experiment is only one of millions of its kind.
- The fact that I used a computer to simulate the results means that
the experimental results are negligible.
- The best number of molecules to have in this super conductor is 0.15.
- We then proceeded to zoom in on the area of the graph that represented
the compounds superconductivitiness.
- When the oxidation state is oxidised, p-type is shown. Oxidation is
a loss of electrons and so a positive 'hole' appears in the crystal
lattice. Electricity can flow through the material because of this hole.
- The theoretical understanding of superconductivity is not understood.
- High temperature superconductors are superconductors that superconduct at
- To begin the experiment the 'Begin Experiment' button was clicked.
- Temperatures below 5 K do not exist as this is below the melting point of
- Therefore wavelengths emitted from your body are never going to interfere
with any of the cells in your body.
- The experiment was performed by first entering the program.
- Doping the material with Sr makes the Cu have a bizarre oxidation state.
- The experiment was logged onto.
- A Cu2+ ion is degenerate.
- Conduction then occurs as an electron is present within the voltage.
- Cu3+ is able to exist because it is sabilised by complexion to the six
oxygen atoms, and are exceptionally hard.
- If this occurs then the energy loos in the transfer of electricity will
- I inserted the x values into my box and got a resistance.
- A superconductor is a material that has relatively normal properties
at normal temperatures.
- Too many Cu3+ ions would result in an infinite coupling, to few would result
in no coupling.
- In too high a quantity the Cu(iii) ions will steal the electrons that are being
passed through the conductor, hence eliminating it's properties, as such.
- This fact has really helped research into this area as before the only way they
could get cold enough was to use liquid Helium, which is very cold. And expensive.
However these days cheep liquid Nitrogen can be used instead.
- Copper atoms are green.
- The Cu3+ is a kink in the lattice.
- Defects can skip along a chain.
- The other compound wants to be in the square planar but cannot be whereas this one is,
so this could have something to do with it.
- In this structure the Cu-O bonds are so long they no longer exist.
- The experiment was carried out on the computer since it's easier to use someone else's
data than our own.
- Each copper is octahedrally bonded to 8 oxygens.
- If there are too many defects there is not enough Cu2+ too fall victim to "snatching".
- At low temperatures the Cu ions are stationery.
- To begin the experiment, the window was opened.
- As it is very difficult and often not practical to do experiments in these extreme cold
temperatures this result can inform new persons undertaking research in the field exactly what
composition factor x superconductivity for this material can occur and what is the highest
temperature possible superconductivity can be achieved at with out having to go through
experimental trial and error so saving time and money.
- The presents of the Cu-O causes supeconductivity.