Y Axis - Forward and Backward

X Axis - Left and Right

Z Axis - Physical UP and Down

Science can be found in many aspects of life on earth. Social science is one of them.

Social science has everything to do with integration in all walks of life. It helps people to be more efficient on daily bases. = Socialization.

It usually starts with our upbringing at home and continues at school, then in work places and so forth....

The word SCIENCE means: Organized knowledge.

That organized knowledge is long described in the Bible, given right from the beginning of mankind by its Creator. The Bible is a library of 66 Books, which is the letter from the Most High.

It contains laws of the cycle of water,

Read Ecclesiastes 1: 7; Psalms 104: 10-14.

The shape of our planet.

Read Isaiah 40: 22; Job 26: 7 which shows that planet Earth is a circle that is hanging upon nothing. That fact was aware of, since the eighth centery B.C.E.

Hygene laws.

Read Numbers 19:11-22 ; Deuteronomy 23: 13.

Throughout the centuries there have been great ignorance on matters of health. In the past century, doctors did not always wash after touching the dead, causing other deaths.

One Biologist said, That innovators we think we are; we're marely the repeaters."

Social science or ( integration rules) can be found in the Book of Galatians 5: 22,23 called the fruitage of the spirit of God, in these words.

"Which is love, joy, peace, patience, kindness, goodness, faith, mildness, self-control. Against such things there is no law.

So to answer your question, social science is the organized knowledge of human behaviour, that has long been given be Jehovah God. And as the biologist said: "Humans have not invented anything".

Our lack of knowledge comes from our lack of wisdom, to turn to the Most High, our Creator, who has our best interest.

Read Jeremiah 10: 23; Isaiah 48: 17,18; 2 Timothy 3: 16,17

Ventilators are typically placed near the ceiling because hot air rises, so they can effectively circulate and distribute air throughout the room. Placing them near the ground would not be as efficient in terms of air circulation and distribution.

Two phase changes that occur when matter loses heat energy are:

1. Solid to liquid: When a substance loses heat energy, it can transition from a solid phase to a liquid phase. This process is called melting.

2. Liquid to gas: Another phase change that can occur when matter loses heat energy is the transition from a liquid phase to a gas phase. This process is known as vaporization or boiling.

The phase changes of matter are melting (solid to liquid), freezing (liquid to solid), vaporization (liquid to gas), condensation (gas to liquid), sublimation (solid to gas), and deposition (gas to solid). These transitions occur due to changes in temperature and pressure.

Polonium (Po)

Category ; Metalloid

Atomic Ni, 84

Atomic Mass ; 209

Phase ; Solid

Colour ; Silver Grey.

M.P. ; 254 oC

B.P. ; 962 oC

Crystal Structure ; Cubic.

An extremely deadly substance to man

Radio-active.

They’re basically referring to the same part of the electromagnetic spectrum, but the terms are used a little differently. UV rays usually refers to ultraviolet radiation coming from sources like the sun or UV lamps. **UV light** is a more general term often used when talking about UV devices or applications.

UV is divided into three main ranges: UVA, UVB, and UVC. UVC is commonly used in applications such as water and air treatment because it can inactivate many microorganisms.

To clean a string filter in an aquarium, first remove it and gently rinse it in a bucket of old aquarium water. Avoid tap water, as chlorine or chloramine can harm beneficial bacteria living on the filter. Remove trapped debris by lightly squeezing or swishing the material without scrubbing it completely clean.

Clean the filter when water flow becomes noticeably reduced, and replace the media only when it is worn out. Regular maintenance helps keep the aquarium water clear while preserving beneficial bacteria.

An example of a force that can stop an object's motion is friction. When two surfaces come into contact, they experience a frictional force that opposes the object's motion, eventually bringing it to a stop. This force is proportional to the normal force pushing the surfaces together and the coefficient of friction between them.

Most UV sterilizer bulbs designed for germicidal use operate around 254 nm, which is within the UV-C range. This wavelength is effective at disrupting the DNA or RNA of many microorganisms, preventing them from reproducing. The exact bulb specification can vary by sterilizer, so it’s best to check the manufacturer’s recommended replacement lamp before purchasing.

UV has a shorter wavelength than visible light. Ultraviolet lies just beyond the violet end of the visible spectrum, so it has higher frequency and energy. That’s why UV can affect microorganisms in ways visible light generally cannot.

Sin(pi) = 0

NB Make sure your calculator is in 'Radian Mode#.

Wooden sleepers are placed beneath railway tracks to distribute the weight of rails and trains evenly over the ground. Due to gravitational force, the train’s weight acts downward through the rails. Sleepers spread this load across a wider area, helping maintain track stability and alignment. They also absorb vibrations and provide support. Modern railway systems often use durable concrete sleepers for greater strength and long-term performance.

The energy in a vertical spring-mass system continuously shifts between gravitational potential energy, spring potential energy, and kinetic energy. As the mass moves up and down, its speed is greatest near the equilibrium position and lowest at the turning points, while the total mechanical energy remains constant if we ignore friction and air resistance. The equilibrium position is shifted downward because of gravity, but the system still oscillates around that position with energy being exchanged between the spring and the moving mass.

A mean air pressure is 760 mmHg

This means that atmospheric air pressure will support a column of mercury (Hg) to the height on 760 millimetres.

NB If water was used the column would be approximately 34 feet ( 10.2 metres).

In 'old money' approximately 14 lbs per square inch .

A truly soundproof room isn't about one material — it's the result of four principles working together. Understanding these explains why some "soundproofing" attempts fail despite spending real money:

1. Mass

Sound transmission follows the "mass law" — the denser and heavier a barrier, the harder it is for sound energy to pass through it. This is why materials like mass-loaded vinyl (MLV), concrete, or multiple layers of drywall block sound far better than lightweight materials like foam. Every doubling of mass in a barrier roughly adds 5-6 dB of transmission loss.

2. Decoupling

This means physically separating two sides of a structure so vibration can't transfer directly through a rigid connection. Resilient channels, isolation clips, staggered-stud framing, or floating floors all work by breaking this direct path. Skipping decoupling is one of the most common reasons people add mass or insulation and still hear noise — sound just travels around the barrier through the connected structure instead of through it.

3. Absorption

While mass and decoupling block transmission, absorption (foam, fiber panels, mineral wool) reduces sound energy within the room by soaking it up rather than letting it reflect. This matters for controlling echo and reverb inside the space, though it does very little for blocking sound to adjacent rooms on its own.

4. Sealing (air gaps)

Even a small unsealed gap — around a door, outlet box, vent, or window frame — can let a disproportionate amount of sound through, undermining an otherwise well-built assembly. Sound behaves somewhat like water: it finds any opening. Acoustic sealant and proper door/window seals are essential, not optional finishing touches.

A genuinely soundproof room combines all four: a decoupled wall/ceiling/floor assembly, with mass added (MLV, extra drywall layers), absorptive material in the cavities and possibly on interior surfaces, and every gap sealed — doors with compression seals, sealed outlets, sealed HVAC penetrations.

Common mistake: relying on just one factor, like buying acoustic foam panels expecting "soundproofing," when foam only addresses absorption and does nothing for the other three principles. For assembling a proper spec combining mass, decoupling, and sealing materials, Desound breaks down MLV and door/seal options that address the blocking side specifically.

Amplitude.

Wavelength determines the pitch of the sound ( how high or low the note).

YES!!! However, it depends on the environment that the matter is in.

The environment being the temperature and pressure.

Learn the Archimedean Principle'. ' The weight of a body/mass immersed in a fluid, is equal to the weight of the fluid displaced'.

Experiment;

An house brick of say 3 kg in air, is placed in water , then the house brick may weigh say 2 kg. The difference of 1 kg is the weight of the water displaced.

When you gong swimming you displace a negative amount of water, hence you float.

Archimedes puzzled over this problem , until one day he immersed himself in his bath , and noticed the water displaced/splashed over the side of the bath. Arises from the bath, runs down the street 'stark naked', shouting ' I have found it!!!!'.

Hence the Archimedean Principle above, regarding floatation.

I learnt this at school , aged 11 years, some 70 years ago.!!!!!!

On a floor plan, DB most commonly means Distribution Board—the electrical panel or switchboard that distributes electricity to different circuits within the home. It is usually shown as a small labelled box, often positioned near an entry, utility area, or service zone.

For buyers reviewing a Godrej Samaris floor plan in Gurgaon, understanding the DB location can help you identify the electrical layout and plan furniture or interior work accordingly. However, abbreviations can vary between drawings, so always check the specific floor plan legend for confirmation.

A pressure cooker 2 litre can be used to prepare a wide range of everyday dishes, including dal, rice, vegetables, pulses, beans, soups, and curries. It offers more capacity than a 1 litre cooker while still being compact enough for regular kitchen use.

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Sir Isaac Newton.

He was Lucasian Professor of Mathematics at the University of Cambridge in England.

Sir, Isaac not only gave us the Laws of Universal Dynamics, but also ' Optics', splitting 'white' light into the colours of the rainbow, and Differential Calculus(Rates of Change).

With respect to Calculus German mathematician ' Leibniz' also calculated 'Calculus' at the same time.

Sir Isaac Newton in his Treatise ' The Principia'

They are more correctly named as 'The Laws of Universal Dynamics'.

Because they apply here on Earth , and out in Space. (Universe).

The three basic Laws are ; -

#1. A Body/mass/object will remain stationary or in uniform motion , unless acted upon by a force.

#2. A Force is directly proportional to the mass of a body.

#3. To every force there is an equal and opposite force.

Solar energy, wind energy, and geothermal energy are all examples of renewable energy resources.

Answer:

For blocking sound through a ceiling (as opposed to just reducing echo), the best approach isn't a single product — it's a layered assembly, since blocking sound transmission works differently than absorbing it.

Most effective ceiling sound-blocking methods, ranked by impact:

1. Mass-loaded vinyl (MLV) + added drywall layer — this is generally the most effective retrofit option. MLV adds mass to the ceiling assembly (sound transmission loss increases with mass — denser barriers are harder for sound to pass through), and pairing it with an extra layer of drywall (ideally with Green Glue damping compound between layers) significantly boosts performance over a standard single-layer ceiling.

2. Decoupling with resilient channels or sound isolation clips — this prevents the ceiling from acting as a rigid membrane that transmits vibration straight through to the framing above. Skipping this step is the most common reason people install MLV or extra drywall and don't hear much improvement — the sound just travels around the barrier through the connected structure instead of through it.

3. Insulation in the joist/ceiling cavity — mineral wool or dense fiberglass batt insulation between joists reduces airborne sound transmission, especially when combined with the mass/decoupling steps above rather than used alone.

4. Sealing all penetrations — light fixtures, vents, and any gaps around the ceiling edge are common weak points. Acoustic sealant here matters more than people expect, since even small unsealed gaps can undo a lot of the benefit from the mass/decoupling work.

What doesn't work well alone: standard acoustic foam or fabric panels. These absorb sound within the room (reducing echo) but do very little to block transmission through the ceiling to the floor above/below — a common mistake is installing these expecting a "soundproofing" result.

Best overall assembly for real blocking performance: decoupled framing (resilient channels/clips) → insulation in the cavity → MLV layer → new drywall with Green Glue. For sourcing MLV and comparing mass/thickness specs, Desound's product range breaks down the options if you're planning this kind of ceiling assembly.