Recent content by PietKuip

In the decision to clear Macchiarini of misconduct (Swedish text), Karolinska states that the decision to operate on the first patient had been taken "after a clear process in health care including an evaluation by the ethics council of Karolinska Hospital". Macchiarini describes this process in...

Macchiarini operated in violation of the Nuremberg Code and of the Declaration of Helsinki, principles of ethics for medical experiments on humans that were written down as a reaction to what had become known in the doctors' trials after WWII.

But in this case, the record was not corrected from within science. Ethics committees gave the ok to Mengele-type experiments. Scientific peers (people in Italy, Delaere, colleagues at KI) tried to sound the alarm about discrepancies, there was an investigation, Gerdin reached clear conclusions...

No difference for a stationary (DC) field.

He may have access to a stash of lab reports by older students? That was what I had, way way back. (I never copied though, just used them to learn.) It is not uncommon to find plagiarism in introduction and background. I react strongly in such cases, the student is in trouble when I see that...

If the experiment is so advanced and difficult, why cannot LIGO arrange a webcast for the public? Our physics department wants to watch, we would like to invite students too.

Thanks for reopening the thread. A very good summary by Gretchen Vogel was published in Science February 4. Since then the secretary general of the Nobel committee has resigned, because he assumed that he would be investigated by a special inquiry. That inquiry will be headed by Sten Heckscher...

The whole system: peer review, collegiality, institutional checks and balances, ethics approval, science journalism, investigations into scientific misconduct. None of this worked. Extraordinary claims got published without even ordinary evidence.

Maybe you saw the piece about this star surgeon's personal life in Vanity Fair, mythomaniac lies about getting married by the Pope, Putin and the Obamas attending. If it is too good to be true, it probably ain't true. The guy has a base in Sweden, at Karolinska Institutet, the home of the Nobel...

Do not post the same question twice!

A constant wave can be written as a function of x-vt.

The drift current is caused by the built-in electric field over the depletion layer. It hardly changes with biasing.

No. As you suspected, I suppose. You can check your answers yourself: if you put back "t=20.81" in the first line of your equation, you will see that you are way off. From your second line, one can see that cooling and heating have a ratio of about 2:1 in temperature.

The shockwaves that one can see sometimes around fighter planes are due to water droplets. The other thing (as in Schlieren photography) is caused by variation in the refractive index with density.

The p_x and p_y are standing waves, linear combinations of counterrotating spherical harmonics Y_{1,-1} and Y_{1,1}