Howlers of the week 2000-2001
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.
- Electrons dumping in superconductors allows a current to flow without resistance.
- The Cu atoms are aligned in a line.
- Toaster ovens, for example, are specifically designed to have a lot of resistance.
If there was no resistance in a toaster, your bread would never become toast.
Superconductors should not be used in toasters as they have no resistance.
- The Cu3+ ions form a defect in the lattice which changes the structure, so it becomes
a 'bent copper'.
- This can take the normal coppers electron to become a normal copper, and turn the
origional copper back into copper.
- If oxygen can be oxidised rather than copper, there is a slightly different explanation
as things happen slightly differently.
- However, as Sr is added to the lattice the whole flavour of the atom changes.
- The Cu3+ in the chain causes the chain to be strained. This strained chain is
to blame for superconductivity.
- The electron is pushed toward an atom, and if this atom happens to be an ion, it will
grab an electron from its neighbours cloud.
- This is because the melting point of boiling nitrogen is 4K.
- If an applied voltage is applied...
- This takes less time than carrying out the experiment experimentally.
- Positive currents move to the right, negative currents move to the left.
- When it comes close to a 3+ ion, as the orbitals of the next copper are
bent towards it the unstable 3+ copper will take them.
- When a current is applied the Cu3+ ions jump backwards.
- The Cu has a coordination number of eight and is bonded to six O atoms.
- This causes the atom to rattle back and forth in the lattice.
- In 1986 high temperature superconductors were born.
- The superconductor was then incinerated in a furnace...
- A moving electron is flying compared to the motion of the heavier ions.
- Once the passing electron has moved sufficiently far away the d orbitals
pop back into place.
- ...this allows the elctrons to move through the lattice unpiturbed.
- When the superconductor is heated up above its critical temperature
the Cu atoms vibrate meaning that the electron is passed all over the place.
- The atom is an ion, Cu3+, and is crying out for electrons...
- The oxidation state of the oxygen can also explain superconductivity,
although I'm not certain how.
- Superconductivity occurs when certain inorganic compounds are doped
with alien metals.
- An electron travels in a plane with TC.
- Superconductivity, is a phenomenon, where at a certain critical
temperature, Tc, some compounds' resistance, to the passage of current,
through them, falls to zero.
- Once the graph went to zero, no more points were taken as this
- This causes the electron to bulge toward the ion.
- Then the graph was built up and smoothened out.
- What is in fact happening is that he electron causes another electron
on a Cu2+ ion to move to the Cu3+ ion thereby reducing
it and oxidising itself.
- Understanding of superconductors is becoming more and more, and with it
the critical temperatures are becoming higher and higher, and thus the use of
superconductors in everyday life is becoming more and more.
- The name of high temperature superconductors can be Miss Leading.
- The passing electron causes the Cu d-orbitals to sway.
- The values of x that were chosen are displayed in the raw date section.
- A plot was made of x against Tc by choosing values of x with care,
as to not obtain too many results.
- Superconductors can be made to hoover above strong magnets.
And here's a bonus one from the Theoretical Workshops...(remember spelling and
grammar have been copied exactly).
Q. Compare what happens when you increase the energy in the CLASSICAL
and SCHROD programs. Can you tie up the changes in the wavefunction in
SCHROD with the changes in motion shown by CLASSICAL?
A. When the classical program for the same system is run and the
results compared, there are only specific energy levels due to certain
energies of photones of light so only the allowed energy levels are
transmitted to become allowed energy levels.
Whereas the classical program is that the partical can exist anywhere.
When the classical program is run compared to the schrod program when
the energy is increased in the classical the partical moves a lot
The Broylie eqn L/p=h, so energy increases of L gets smaller.
This is just happens.