Sai Science academy

 Big Bang Theory is most accepted theories of creation of universe, but there are some questions left unanswered from this theory. Some questions are there I will try to answer by a new theory(read this with a fresh and accepting mind)  Before starting see the BIG BANG theory  We all know that if anything or any event or any action happening should happen somewhere at some time at some place. You can take any common action it follows this rule  But According to big bang Universe is begun with a bang, then this neglects the rule, we can assume that big bang happened somewhere, but we don't know where it happened this can be asked as a question  Now what created matter and antimatter, or how was it created For now we know there are matter, antimatter and energy  OK if we assume it was created but In time of big bang what the bubble smaller than atom is created of?  If we ask questions like this then there is no end for questions, to understand something...

 1. Resource is anything obtained from environment to satisfy our needs and wants.  2. A natural resource is one obtained from nature  3. Exhaustible natural resources are those which are present in limited quantity in nature . Eg:- Forests, coal, petroleum, natural gas etc 4. Inexhaustible natural resources are those which are present in unlimited quantity in nature . Eg:- Air, water, sunlight etc 5. Petroleum is also known as Black gold

 2. FRICTION 1. Friction is the force which opposes the relative motion between the two Surfaces in contact and it acts on both the surfaces. 2. Friction depends on the nature of surfaces in contact. 3. Friction is independent of the area of contact. 4. Friction is caused by irregularities on the two surface in contact. 5. 6. Static Friction comes into play to counter balance the applied force on the body. When one surface is sliding over the other sliding friction comes into play. 7. When one body rolls over the surface of another body, the resistance to its motion is called the rolling friction. 8. The sliding friction is slightly less than the static friction. 9. The frictional force exerted by fluid is called drag. 10. Friction can be reduced by using:- grease oil, powder, ball bearing and using anti friction alloy. 11. The substance which reduce friction are called lubricants. 12. Rolling friction is smaller than the sliding friction. 13. The sole of the shoes and the tyres of...

# Speed= Distance/ Time  # Time = Distance/ Speed  # Km/hr to m/s conversion:    X Km/hr = (x × 5/18) m/s  # m/s to km/hr conversion:     X m/s = (x × 18/5) km/hr  # If the ratio of the speeds of A and B is a : b, then the ratio of the time taken by them to cover the same distance is 1/a : 1/b or b : a  # Suppose a man covers a certain distance at x km/hr and an equal distance at y km/hr. Then,the average speed during the whole journey is   (2xy/x+y) km/hr Thank you  Regards SSA Sai Group

 The atomic orbitals of same energy or nearly same energy intermix to give new orbitals of same energy # Half filled orbitals.       Empty orbitals.           Full filled orbitals.  All can do hybridization # The number of hybrid orbitals = Number of intermixing orbitals # The concept of hybridization is for Sigma(single bond) bond and lone pair. # Hybrid orbitals are named after the parent orbital  1s + 1p = sp, sp  1s + 2p = sp2, sp2 

 Wishing all a Happy Children's Day Happy children's day to all blooming flowers. May the freshness and fragrance of yours reign in the world forever. The cheerful  smile of yours keeps me more active. So keep smiling and the world will smile with u. Happy children's day   🎉🎉🎉  

 Q1) What is a pixel? Ans- Pixel is a small dots or squares that make up a image or a screen Many pixels make a screen, every screen has many pixels. Q2) What is HLA typing Ans- HLA typing is a kind of genetic test used to identify certain individual variations in a person's immune system.  This is especially used to find out the type of blood, it is important to know HLA typing, in case of any blood transplant, this is used.  Every people have different HLA typing, so the person with same HLA typing can donate the blood to the person with same HLA typing. So I hope you understand, if you want more information and details on it then tell me in comment's. Q3) What is the purest form of sound? Ans- Beejakshara We hear many different type of sounds, but purest form of sound in beejakshara. Beejakshara is written in hindu texts as OM, shreem, hreem..... Etc. These sounds when you spell then some vibrations starts inside and you start to go into some super meditation.  No...