The first telephone was patented by bell in 1876 this was during what is now known as the second industrial revolution. This was a breakthrough in telegraphy communications that would in time lead to one of the most influential invention of our generation, the mobile phone. Bells telephone was not very aesthetically pleasing but it was the first of its kind and also the first device ever to allow communication through electromagnet transmitting currants. Bell did for the telephone what henry ford did for the automobile industry. Bell was not the first to experiment with telephonic device, bell and his companies were the first to develop practical and commercial telephone that would allow a successful business to build and grow.
The applications were limited to a few areas of the body, such as eye tumours and head-neck tumours, since those accelerators were not designed for the treatment of patients and the energy was too low to treat deep-seated tumours. However, this pioneering work opened the way for clinical and technological developments of this discipline and a milestone was achieved when in 1990 the first patient was treated at the Loma Linda University Medical Center in California, the first hospital based proton therapy centre . Until 2013, more than 100 000 patients were treated with proton therapy worldwide . Radiation therapy works by overwhelming the capacity of the cell to repair DNA damage, resulting in cell death. Cells that are rapidly dividing, typically cancer cells, are affected most.
Due to the introduction of AnnoviReverberi Triplex 3 Axial Piston Pump, it is highly efficient in terms of getting started within very short time. Following are its useful features. Light Weight The main plus point of this product is that it has very light weight. It possesses only twenty seven pounds weight and it is lighter than majority of the power washers available in the market. Few people consider this appliance as the best choice only on the basis of its light weight because it is very efficient for tasks which require the user to regularly move from one place to another during cleaning.
Overall rating:Easy to Store The Compact 10×25 DCF binoculars are small enough to store anywhere. It is possible to attach a neck strap and carry around your neck or you can place them in a pouch on your belt. The binoculars close inwards to make them smaller for storage, which is perfect for those who are trying to travel light.Easy to Carry Around At just 175g, these lightweight
This indicated that the standard curve at 500nm is the most sensitive because the steeper the slope of curve, the greater the sensitivity. Besides, the R2 value obtained from the standard curve at 500nm is the closest toward 1.0 which is 0.9892. As we know, R-squared is a statistical measure of how close the data are to the fitted regression line. In another word, the closest the value of R-squared toward 1.0, the better the model fits the data (Glantz & Slinker, 1990). Therefore, the wavelength at 500nm which is also the λmax of spectrum scanning from 200-800nm is used to determine the amount of reducing sugar in the honey
Best Disposable Razors Much like cartridge or safety razors, disposable razors also have several advantages. Not only is it the most affordable, which is one of the reasons why it continues to be one of the most sought after razor, but, also, it can give a smooth, close shave to the skin. The blades of disposable razors are essentially made thin to further enhance the smoothness and closeness of the shave. Moreover, a disposable razor is perhaps the most convenient option, especially for those who have just started shaving. It is accessible, and, also, it requires little to no tweaking to master the appropriate way of using it.
Resolution (resolving power) is the ability of a microscope to differentiate between two points. The resolution became better if the wavelength of the illumination is shorter. The white light used in a light microscope limits resolving power to about 0.2μm. The lenses which are closest to the specimen are the objective lenses. For the highest magnification, it is necessary to use oil immersion.
He was also the first to understand the rainbow, he also told the fact that white light is light containing all wavelengths of the visible spectrum with the help of his experiments on the dispersion of light in glass prisms.  Figure1- 1: Newton Colour Cycle  In 1802 Thomas Young suggested that different types of colour sensitive receptors present in the eye and his idea was developed by Hermann von Helmholtz and emerged as Young-Helmholtz theory. James Clerk Maxwell developed the usage of the primary colours and noticed that no addition of these colours can cover the entire range of perceivable colours but with some subtraction it can be done. Maxwell got to know that the chromaticity of a coloured surface is relatively insensitive to the brightness. This could be considered to be the basis for modern colorimetry.