Science Facts/Education

Random Facts:
T-rex body size is about 5 km and its brain size is about 60 cm
Each dog nose has a unique print i.e similar to our finger print
Radium is the most expensive element

BNT162b2, a novel COVID-19 vaccine is in ongoing trials. It has been shown to have about 95% efficiency. It is developed by BioNTech and Pfizer.

Let's hope it gets approved!

A gram of Uranium roughly contains 20 billion calories. 💀

pH table
pH Level : pH Colour

1 : Red
2 : Red
3 : Red
4 : Pink
5 : Orange
6 : Yellow
7 : Green ( normal)
8 : Greenish blue
9 : Blue
10 : Violet
11 : Violet
12 : Violet
13-14 : Violet

Fear

Technical terms
Atom : smallest particle of an element containing electron,proton
Proton : sub atomic particle with unit mass and unit positive charge found in nucleus of an atom.
Candela : SI unit of luminous intensity
Carbon-14: Isotope of carbon-12 having atomic mass 14 and is radio active
Celsius : a unit of temperature in which freezing point of water is taken as 0c and boiling point of water is taken as 100c
CGS : a system of unit in which length is measured in centimetre, mass in gram and time in second
Crystal : a natural particle of a substance with smooth surfaces meeting at sharp edge to form a fix geometrical shape such as crystal of iodine.
Density : mass of unit of volume of substance.
Derived unit : a unit which is derived from basic units.
Electron : sub-atomic particle with unit negative charge, mass equal to 1/1837 of proton mass and is found in the orbit of an atom.
Electromagnetic radiation : a kind of radiation producing electromagnetic waves of varying wave lengths.
Fossil : remains of ancient pllants and animals found in sedimentary rock.
FPS : as ystem of unit in which length is mesaured in foot, mass in pound and time in second.
Frequency : number of waves or cycles produced in unit time
Fundamental unit : units which are idependent of other units.
Iridiumm : a kind of metal which does not rust
Kelvin : SI unit of temperature used in science. Its value is degree Celsius +273. eg 10C is equal to 273+10=283K
Krypton-86: an isotope of krypton and is radio-active element.
Mass : amount of matter contained in a bodu and is depended upon the total no. of proton neutron and electron.
MKS: a system in which length is measured in metre mass in kilogram and time in second
Mol : SI unit of amount of substance
Neutron : sub atomic particle with unit mass but zero change and found in the nucleus of an atom.
Nucleus : central and condensed part of an atom , it contains proton and neutron.
Oscillation : to and fro motion of pendulum
Pendulum : a heavy bob supsended with a string and used to measure the time period of oscillation.
Platinum : a kind of metal more precious than gold which has density higher than gold.
Prototype : the first model designed from which other forms are copied
Quartz : a crystalling material mineral made up of silica.
Radioactive decay : a process of disintegrating mass of a radio active element producing radiation. In the long run the element changes to other element
SI units : System of international units created in 1960. Agreed by the international convension of scientist held in France in 1968.
Solar day: a time period of one complete rotaion of the earth in relation to sun.
Standar meter : scale,length of which is internationally accepted as one metre.
STP: full form of Standard Temperature and Pressure in which the value of temperature is 0c and that of pressure is 760 mm of HG.
Sundial : a kind of clock, which counts the time by movement of shadow tip of the rod kept in it.
Universe : space in which all the stars planets,nebula and all other heavenly body exist.
Acceleration : change in velocity per unit time
Aceleration due to gravity: rate of change of velocity of a free falling body due to gravity of earth.
Alternating current : curent that changes polarity frequently with time.
Atmosphere : the layer of air covering the earth
Avergae velocity : total distance covered per unit time in a particular direction
Deceleration : to decrease velocity per unit time
Displacement: distance covered in a particular direction
Force : push or pull
Frequency : number of cycle per second
Friction : resistant to motion
Gravity : pulling force of a planet to the object on it
Gravitation : phenomenon of attraction beetween two heavenly body by virtue of their masses
Gravitational force : force of attraction beetween any two bodies
Gravitational field. : force of attraction exerted by a planet on unit mass.
Inertia : tendency of a body to resist the change in motion o by virtue of mass
Mass : amount of matter contained in a body
Motion : change in position with time
Oscillation : to and fro motion of a pendulum
Parallelogram law : a law used to find out the resultant of two forces or velocities acting on a point with certain angle.
Retardation : decreasing velocity with time
Scalar quantitiy : quantity which ahas only magnitude
Space : universe beyond atmosphere of the earth
Space ship : a vehicle of space
Speed : distance covered per time
Ticker timer : a instrument used to mark interval
Vector : quantity having magnitude and direction
Weight : force of attraction exerted by the earth on a body.

4 Stage of Matter: Yes, sir 4. They are:
A).Solid:
sɒlɪd/
adjective
1. firm and stable in shape; not liquid or fluid.
"the stream was frozen solid"
synonyms: hard, rock-hard, rigid, firm, solidified, set, frozen, jellied, congealed, concrete
"the stream was frozen solid"
2. having three dimensions.
"a solid figure with six plane faces"
noun
1. substance or object that is solid rather than liquid or fluid.
2. GEOMETRY
a body or geometric figure having three dimensions.

B).Liquid: A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, it is one of the four fundamental states of matter (the others being solid, gas, and plasma), and is the only state with a definite volume but no fixed shape.

C).Gas: Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen)

D).Plasma: A plasma is a hot ionized gas consisting of approximately equal numbers of positively charged ions and negatively charged electrons. The characteristics of plasmas are significantly different from those of ordinary neutral gases so that plasmas are considered a distinct "fourth state of matter."

Did you know paper clip can float on water when placed slowly, but sink while sink when doing it fast? Did you know why? It's all because of surface tension. You can perform it. Put the paper clip very slowly on the top of water, keeping it as much parallel to the meniscus. If you do it correctly, and slowly it'll float.

Surface tension is the elastic tendency of a fluid surface which makes it acquire the least surface area possible. Water has highest surface tension among other liquids. This is why it floats because of suface tension acting on paper clip.

FACTS
1)Einstein was born on christmas day
2)Archimedes was killed solving mathematical problem
3)Robert Hooke is known as father of microscopy