WHY SONG

As the distance of star increases the parallax angle decreases and great degree of accuracy is required for its measurement. With this in view how does light measure distance. Pin On Flooring An accurate and quantitative determination of distance using light has many practical applications in modern life. Why can light be used to measure distances accurately . Once this Earth-Venus distance is known the distance between Earth and the Sun can be calculated. In many cases these methods are mathematically complex and involve extensive computer modeling. Cosmological distances distances on the largest scales of our universe are the most difficult to estimate. However one will not be able to determine the position of the particle more accurately than the distance between the wave crest of light so one needs to use light of a short wavelength in order to measure the position of the particle precisely. Accurate distance measurement resolves major astronomical mystery. Instruments...

We deliver performance and consistency essential to successful cell culture. Heating serum to 56C for 30 minutes was used in the past to inactivate the complement system for immunoassays. Fetal Bovine Serum Heat Inactivated Certified One Shot United States We knew that so its time to move on But before we do allow me to take. Why is fbs used in cell culture . Historically before fetal bovine serum FBS was introduced to cell culture different tissue extracts or embryoextracts were used to achieve artificial activation of the growth in. Fetal bovine serum FBS is the liquid fraction of clotted blood from fetal calves depleted of cells fibrin and clotting factors but containing a large number of. Animal seraboth bovine and non-bovine seraare used in cell culture applications with. Fetal bovine serum FBS is a by-product of the dairy industry which is widely used in cell culture. Theodore Puck first used FBS for cell growth in 1950. In addition FBS has been notorious for introdu...

Class C fly as is more commonly used for structural concrete. When added to concrete fly ash reacts with the hydrated cement paste in a primarily pozzolanic reaction. In the closely watched category of fly ash used in concrete utilization in 2012 remained level at 118 million tons up by 44000 tons over 2011 and below 126 million tons in 2008. Why fly ash is used in cement . Fly ash is also known to increase the concretes durability so longer service life means that much less material and energy will be used to repair rebuild or replace constructions adds Kren. The CSH is the same cementing product as Portland cement. One forum participant related that his company replaced 50 of the portland cement with fly ash in a mix that was being used in the substructure of a large bridge project. These additional uses of fly ash include asphalt filler and soil stabilization. STEP 2- Mixing of material in the proportion of Fly ash 60 Sand 30 Cement or lime 10 and water as per requirement....