Practice for the Shanghai F1 race had to be abandoned due the medical helicopter being unable to land at the designated hospital due to weather conditions presumably fog. In this hi tech age with GPS and radar I find this surprising.
I think that the laws that ban discrimination on the grounds of race, gender, religion ect should also ban the discrimination against BMW drivers (such as me) . I always find it a great relief when I drive in Germany as I know all other drivers will be driving in a responsible manner and I will not encounter cameras and drive even slower signs every 500 meters, I normally drive at 160Kph as compromise between getting there quickly and costs.
When I was a boy a popular boys magazine ran a serial story about a group of explorers who travelled the solar system in a space ship that was powered by having sliding panels that shielded it from gravity, considering the infinitesimal mass of the Graviton compared even to the Neutrino I wonder how thick they would need to be?
Although they are worrying things to have around nuclear bombs have not killed many people as weapons go, the worst damage they cause is that they deter the building of nuclear power stations with the result that power is still generated from coal that results in a large number of deaths from pollution and causes climate change from CO2 emissions.
I have read an account by a senior engineer of a motor manufacturing company that attempted to manufacture a motor to Newman's design. he found that Newman was ignorant of the basic techniques of motor design and considered him a con artist.
where ever you have a thermal gradient similar to a gravitational gradient you can extract power from it I feel that a combination of a heat pump and a Peltier junction is an over complex way of doing it.
I am sure a lot of research took place in German concentration camps and American prisons but is it likely that multi million dollar fighter planes will indulge in the type of combat we saw in WWII more likely they will launch missiles from a distance as the aircraft are to expensive to risk
surely any research that sort to measure the effect of different water purifying techniques on the miscarriage rate would have to ensure that the same sperm was used as the quality of sperm will have a far greater effect on reproductive success than water processing
There equipment bears little relationships to what Hertz used with the result that the frequency was much lower and the wave nature was not fully established at the distance they made measurements. There is no mention of the ERP but it would be much lower due to the small size of the antenna in relation to wavelength. There seem to be no way that the input current to the transformer is limited and the output seems to be virtually short circuited although neon sign transformers may be designed with this in mind. I notice that in the descriptions of the equipment that Hertz used there seems to be a mismatch between the resonant frequency of the antenna and the receiving loops but perhaps there is an error in the descriptions
Judging by the size of the spark gap at the centre of the transmitter dipole one could assume a breakdown voltage of about 10Kv with a centre impedance for a half wave dipole of 70 Ohms that would equate to a pulse power of approximately 1.5MW and a centre frequency of 600 MHz which should be sufficient to spark the 15cm receiver loops that would also resonate at 600 MHz
In his ground breaking experiments on radio waves Hertz used extremely insensitive receivers simply a loop with a spark gap but he was able to demonstrate reflection, refraction , focussing and all the similar phenomena we see with light.
This means his spark transmitter must have put out a considerable peak power are there any estimates of how much and at what frequency.
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The diameter of the moon is about 30 minutes so the apparent size of ISS would be about one minute at the limit of naked eye resolution. ISS would only be visible for a few minutes and moving rapidly I think it was Venus you were watching, and it would appear to move from left to right due to the rotation of the Earth