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Wednesday, November 6, 2024

Innovative Methods for Converting Coal into Usable Energy Without Combustion

 

Coal has been a cornerstone of energy production for centuries, providing heat and electricity across the globe. However, burning coal releases significant amounts of carbon dioxide (CO₂) and pollutants, adversely impacting the environment and often resulting in poor air quality. In recent years, researchers and engineers have sought innovative ways to harness coal's energy without direct combustion. This approach is not only environmentally friendly but also promises to make coal a more versatile and cleaner energy source. Below, we explore several methods that show promise in converting coal to usable energy without burning it.

1. Coal Gasification

Overview: Coal gasification is a process that converts coal into syngas, a mixture of hydrogen, carbon monoxide, and other gaseous compounds. Unlike combustion, gasification is conducted in an oxygen-limited environment, which reduces CO₂ emissions.

How It Works: In a gasification reactor, coal is exposed to steam and a controlled amount of oxygen. This produces syngas, which can be used as a fuel for electricity generation, chemical production, and even synthetic natural gas production.

Applications:

  • Syngas can be used to produce electricity in gas turbines and fuel cells.
  • It can serve as a precursor to hydrogen, which can be used as a fuel in hydrogen fuel cells.
  • Through Fischer-Tropsch synthesis, syngas can be transformed into synthetic liquid fuels, making it a versatile energy source for transportation.

Environmental Benefits: The gasification process generates fewer pollutants, and carbon capture technologies can be integrated into the system, reducing the net CO₂ emissions significantly.

2. Coal-to-Liquids (CTL) Conversion

Overview: The coal-to-liquids (CTL) process transforms solid coal into liquid fuels like diesel or gasoline through chemical processing, not combustion. This approach allows coal to be used in applications where liquid fuels are more suitable.

How It Works: Coal undergoes a two-step process involving:

  1. Gasification: Similar to the gasification process mentioned above, coal is first converted into syngas.
  2. Fischer-Tropsch Synthesis: Syngas is then subjected to catalytic processes, converting it into liquid hydrocarbons.

Applications:

  • CTL can produce synthetic diesel, jet fuel, and other hydrocarbons for transportation.
  • These fuels can be blended with or directly replace petroleum-based fuels, especially in regions where petroleum is scarce.

Environmental Benefits: CTL is cleaner than traditional coal combustion, especially when carbon capture and storage (CCS) technologies are integrated. However, this process still produces some CO₂, so additional carbon management is essential to make it truly sustainable.

3. Carbon Capture Utilization and Storage (CCUS) in Coal Processing

Overview: CCUS is an important complement to both coal gasification and CTL methods. It enables the capture, utilization, and storage of CO₂ generated during the conversion process rather than releasing it into the atmosphere.

How It Works: Captured CO₂ can be injected into underground geological formations for storage or used in enhanced oil recovery, where CO₂ injection helps extract more oil from existing fields. Additionally, captured carbon can be used to manufacture products like concrete, creating a potential revenue stream and helping to close the carbon loop.

Applications:

  • CO₂ is often used in building materials, creating sustainable construction products.
  • It is also essential in various industrial applications, enhancing productivity and efficiency in manufacturing.

Environmental Benefits: CCUS offers a feasible path toward carbon-neutral coal utilization. It supports broader efforts to mitigate environmental impact by preventing the release of captured CO₂.

4. Coal Electrolysis for Hydrogen Production

Overview: Hydrogen is a clean fuel with a high energy density, and coal can be a source of hydrogen without direct burning. In this method, coal is used as a feedstock to produce hydrogen through electrolysis, without releasing CO₂ directly.

How It Works: Coal is first subjected to chemical processes to extract carbon, which is then exposed to water and electrolysis. This splits water into hydrogen and oxygen, with carbon atoms from coal binding with oxygen to form CO₂. With CCUS in place, CO₂ emissions can be minimized, creating a cleaner hydrogen source.

Applications:

  • Hydrogen can be used in fuel cells for electricity generation, offering a clean energy alternative.
  • It can also be stored and transported for use in industrial and transportation applications.

Environmental Benefits: When combined with renewable electricity, this method allows for low-carbon hydrogen production, enabling coal to contribute to a hydrogen-based economy without major greenhouse gas emissions.

5. Underground Coal Gasification (UCG)

Overview: Underground coal gasification (UCG) is a process where coal is gasified while still in the coal seam. This avoids surface mining and the environmental disruptions associated with traditional coal extraction methods.

How It Works: Wells are drilled into a coal seam, and gasifying agents like oxygen and steam are injected. The resulting syngas is extracted from another well and brought to the surface for use in electricity generation, chemical production, or liquid fuel synthesis.

Applications:

  • UCG provides syngas for various industrial and energy applications.
  • It enables energy production from otherwise hard-to-reach coal seams, maximizing resource efficiency.

Environmental Benefits: UCG minimizes the environmental impact of coal extraction by reducing the need for mining and land disturbance. Additionally, integrating CCUS with UCG can create an overall cleaner coal utilization cycle.

Future Outlook: Greener Pathways for Coal

While these methods offer promising ways to use coal without burning it, they are not without challenges. Technologies like gasification and CTL require significant investment and development, and CCUS needs to be more widely deployed and cost-effective. Moreover, the overall carbon intensity of these processes must be managed carefully, ideally powered by renewable energy inputs.

The transformation of coal into cleaner energy sources without burning provides a path to transition away from traditional coal-fired power plants while still making use of existing coal resources. By continuing to innovate and improve these technologies, the coal industry can contribute to a more sustainable energy future.

Monday, November 4, 2024

Why Dogs Wag Their Tails: Understanding Canine Communication


Dogs have been human companions for thousands of years, and while we often interpret their behavior based on our instincts, there’s a lot more to tail wagging than meets the eye. While it’s easy to assume a wagging tail always signals happiness, canine communication is nuanced and complex. Here’s a closer look at the reasons dogs wag their tails, what different wags mean, and how this behavior evolved.

1. The Tail as a Communication Tool

Tail wagging in dogs is fundamentally a form of communication. Like many animals, dogs rely on body language to express themselves, and their tails are an essential part of this non-verbal vocabulary. A wagging tail can convey an array of messages, from friendly greetings to uncertainty or aggression. Dogs typically wag their tails to send signals to humans, other dogs, and animals nearby, as part of an intricate social behavior that’s especially important since dogs don’t have spoken language.

2. Different Wags, Different Meanings

Not all tail wags are the same. The speed, height, and direction of a dog’s wag can give clues about what a dog is feeling. Here’s a breakdown of some common tail wags and what they might mean:

  • High, Quick Wag: A high, fast wag often signifies excitement or happiness. You might see this when a dog is about to go for a walk, play, or sees a favorite person or another friendly dog.
  • Low, Slow Wag: A slow, low wag, especially if the tail is tucked somewhat, can indicate fear, insecurity, or submission. The dog may be uncertain about its environment or might be trying to appease another dog or person.
  • Wagging to the Right or Left: Studies suggest that dogs wag their tails more to the right when they’re happy or relaxed and to the left when they’re feeling anxious. This asymmetry in tail wagging is linked to the way their brains process emotions, with the left side controlling emotions like anxiety and the right side managing positive feelings.
  • Neutral Wag with Relaxed Body: A tail wag with a neutral, relaxed body usually means the dog is calm and content, sometimes observing the environment in a neutral state.

3. Evolutionary-View of Tail Wagging Behavior

Tail wagging theoretically evolved from ancient wolves, the ancestors of dogs, as a way to signal their intentions and avoid conflict within the pack. In the wild, displaying body language like a tail wag allowed wolves to convey submission, friendliness, or aggression from a distance, helping maintain group harmony and structure. Over generations, domesticated dogs retained this trait and adapted it to communicate with humans as well.

As humans domesticated dogs, we likely encouraged dogs to express themselves openly, reinforcing tail wagging as a way to interpret a dog’s intentions and feelings. This has resulted in a sophisticated, instinctive behavior that is now ingrained in a dog’s body language and communication repertoire.

4. Understanding Your Dog’s Tail Wags

As pet owners, observing our dog’s tail wags can give us insight into their emotional state. While a wagging tail often signals a dog’s happiness or friendliness, paying attention to the entire body language—along with the context of the situation—is crucial. A dog with a tense body, raised hackles, and a stiff tail wag may actually be alert or even aggressive, while a loose and wiggly wag often shows relaxation and friendliness.

By understanding the nuances of tail wagging, we can better interpret our dogs’ needs and feelings, improving our relationships and communication with them.

Sunday, November 3, 2024

The Council of Nicaea and the Filioque Controversy


The Council of Nicaea and the Filioque Controversy are pivotal events in the history of Christianity, shaping doctrinal and ecclesiastical boundaries that still resonate today. The Council of Nicaea was convened in 325 AD, laying foundational Christian doctrines, while the Filioque Controversy, emerging centuries later, contributed to the eventual division between the Eastern Orthodox and Western (Roman Catholic) branches of Christianity. Here’s a closer look at these two events and their lasting theological impact.

1. The Council of Nicaea: Context and Outcomes

The First Council of Nicaea was the first ecumenical council, called by Emperor Constantine I in 325 AD in the city of Nicaea (present-day İznik, Turkey). Constantine sought unity in the Roman Empire, which was increasingly torn by theological disputes, particularly those surrounding Arianism—a doctrine proposed by Arius, a priest from Alexandria. Arius argued that Christ was not co-eternal with the Father but was a created being, subordinate to God. This view directly challenged traditional teachings of Christ’s divinity, creating significant division.

Key Outcomes:

  1. The Nicene Creed: The Council of Nicaea produced what is known as the Nicene Creed, a declaration that affirmed Christ’s divinity, stating that Jesus Christ is “of the same essence (homoousios) as the Father.” (N.B. Homoiousios is a Christian theological term, coined to identify those who held the belief that God the Son was of a similar, but not identical, essence with God the Father.) The former phrase aimed to refute Arianism and became central to Christian orthodoxy.
  2. Foundation of Doctrine: The Creed established the doctrine of the Trinity as central to Christian belief, emphasizing that the Father, Son, and Holy Spirit are three persons in one divine essence.
  3. Ecclesiastical Authority: Nicaea also marked the church’s authority to settle theological disputes, establishing a precedent for future councils.

While Nicaea did not end debates over Christ’s nature (the Arian controversy continued for several decades), it set a standard for doctrinal clarity and unity in the early church.

2. The Filioque Clause: Origins and Theological Implications

The Filioque controversy revolves around a single phrase: “and the Son” (Latin: Filioque). This addition to the Nicene Creed asserts that the Holy Spirit proceeds from both the Father and the Son, rather than from the Father alone.

The original form of the Nicene Creed, as adopted at Nicaea and reaffirmed at the Council of Constantinople in 381, stated that the Holy Spirit “proceeds from the Father.” This phrase reflected the teachings of Eastern theologians, who emphasized the Father as the unique source within the Trinity. However, in the West, theologians and church leaders began to include Filioque to express the relationship between the Son and the Spirit more explicitly, affirming the unity of the Trinity as equally shared by the Father and Son. By the 6th century, this addition became standard in parts of Western Christianity, and in 1014, it was officially included in the Latin Church's Creed.

Theological Differences:

  • Western View: The Western (Roman Catholic) Church saw the Filioque as an affirmation of the Son’s divinity and equal status with the Father, reinforcing the close relationship within the Trinity.
  • Eastern View: Eastern (Orthodox) theologians argued that adding Filioque without an ecumenical council’s approval was unauthorized and doctrinally incorrect. They believed it compromised the Father’s role as the unique origin within the Trinity, suggesting a “double procession” that could imply a hierarchy within the Godhead.

3. The Split and Lasting Impact on Christian Unity

The Filioque Controversy was one of several doctrinal and cultural disputes that ultimately led to the Great Schism of 1054, dividing Christianity into Eastern Orthodoxy and Western Roman Catholicism. Tensions over issues such as papal authority, liturgical practices, and theological language had been brewing for centuries, but Filioque became a critical point of contention. When the Pope and the Patriarch of Constantinople excommunicated each other in 1054, it solidified a division that remains to this day.

Legacy and Modern Dialogues:

Since the Schism, various attempts have been made to reconcile the Eastern and Western churches, with both acknowledging the complexities of Filioque. Some modern theologians argue that the theological nuances of the phrase may not necessarily contradict one another but reflect cultural and linguistic differences. The Catholic and Orthodox churches have engaged in dialogues, especially since the Second Vatican Council, to bridge these divides, though full communion remains unrealized.

Conclusion

The Council of Nicaea and the Filioque Controversy were landmark events that shaped Christianity's theological landscape. Nicaea’s establishment of the Nicene Creed provided a foundation for Christian orthodoxy, but the Filioque addition later exposed underlying theological tensions that contributed to the East-West Schism. Today, the dialogue continues, as both branches of Christianity seek to understand and respect their shared heritage while acknowledging their theological distinctions.

The Origin of Earth’s Atmosphere: From Volcanic Gases to Oxygen-Rich Air

N.B.: Occam's razor:

In philosophy, Occam's razor is the problem-solving principle that recommends searching for explanations constructed with the smallest possible set of elements. It is also known as the principle of parsimony or the law of parsimony. Ask yourself the question, which explanation satisfies the aforementioned?


Creationist's Perspective regarding the origin of earth's atmosphere

The Creation of the World (Genesis 1)

In the beginning, God created the heavens and the earth. The earth was without form and void, and darkness was over the face of the deep. And the Spirit of God was hovering over the face of the waters.
And God said, “Let there be light,” and there was light. And God saw that the light was good. And God separated the light from the darkness. God called the light Day, and the darkness he called Night. And there was evening and there was morning, the first day.
And God said, “Let there be an expanse in the midst of the waters, and let it separate the waters from the waters.” And God made the expanse and separated the waters that were under the expanse from the waters that were above the expanse. And it was so. And God called the expanse Heaven. And there was evening and there was morning, the second day.
And God said, “Let the waters under the heavens be gathered together into one place, and let the dry land appear.” And it was so. 10 God called the dry land Earth, and the waters that were gathered together he called Seas. And God saw that it was good.
11 And God said, “Let the earth sprout vegetation, plants yielding seed, and fruit trees bearing fruit in which is their seed, each according to its kind, on the earth.” And it was so. 12 The earth brought forth vegetation, plants yielding seed according to their own kinds, and trees bearing fruit in which is their seed, each according to its kind. And God saw that it was good. 13 And there was evening and there was morning, the third day.
14 And God said, “Let there be lights in the expanse of the heavens to separate the day from the night. And let them be for signs and for seasons, and for days and years, 15 and let them be lights in the expanse of the heavens to give light upon the earth.” And it was so. 16 And God made the two great lights—the greater light to rule the day and the lesser light to rule the night—and the stars. 17 And God set them in the expanse of the heavens to give light on the earth, 18 to rule over the day and over the night, and to separate the light from the darkness. And God saw that it was good. 19 And there was evening and there was morning, the fourth day.
20 And God said, “Let the waters swarm with swarms of living creatures, and let birds[g] fly above the earth across the expanse of the heavens.” 21 So God created the great sea creatures and every living creature that moves, with which the waters swarm, according to their kinds, and every winged bird according to its kind. And God saw that it was good. 22 And God blessed them, saying, “Be fruitful and multiply and fill the waters in the seas, and let birds multiply on the earth.” 23 And there was evening and there was morning, the fifth day.
24 And God said, “Let the earth bring forth living creatures according to their kinds—livestock and creeping things and beasts of the earth according to their kinds.” And it was so. 25 And God made the beasts of the earth according to their kinds and the livestock according to their kinds, and everything that creeps on the ground according to its kind. And God saw that it was good.

        Secularist's Perspective regarding the origin of earth's atmosphere

The history of Earth’s atmosphere is a tale of gradual transformation driven by complex interactions among geology, chemistry, and biology. It offers a window into the delicate balance that sustains life and serves as a reminder of the interconnectedness of Earth’s systems. Understanding this balance is essential as we navigate the future of our planet and our role within it.

The atmosphere of Earth is an intricate, dynamic layer surrounding our planet, crucial to life as we know it. Its origin, composition, and evolution tell a fascinating story that stretches back billions of years. Earth’s atmosphere has undergone significant transformations—from a dense layer of primordial gases to the oxygen-rich air we breathe today. This evolution was driven by geological, chemical, and biological processes, each contributing to the intricate balance of gases that sustain life.

1. The Primordial Atmosphere: A Volatile Beginning

Earth’s earliest atmosphere likely originated from gases captured during the planet's formation around 4.5 billion years ago. As the young Earth coalesced from solar nebular materials, gravitational forces attracted gases like hydrogen and helium. However, because Earth’s gravity was not strong enough to retain these light gases, the first atmosphere was lost into space, driven away by intense solar winds and the lack of a protective magnetic field.

2. The Secondary Atmosphere: Volcanic Outgassing

As Earth’s interior began to heat up due to radioactive decay and frequent asteroid impacts, volcanic activity increased, releasing gases trapped within the planet’s crust. This process, called outgassing, produced Earth’s secondary atmosphere, which was markedly different from what we have today. The primary components were water vapor (H₂O), carbon dioxide (CO₂), methane (CH₄), ammonia (NH₃), and traces of nitrogen (N₂). This secondary atmosphere was thick and toxic, containing little to no oxygen.

Water vapor, a significant component of volcanic outgassing, would later condense and precipitate, filling Earth’s basins and forming the oceans. The presence of water created a critical environment for chemical reactions and, eventually, life.

3. The Role of the Oceans and the Carbon Cycle

The formation of oceans marked a turning point in Earth’s atmospheric development. CO₂, a dominant greenhouse gas at the time, began dissolving into the oceans, where it reacted with minerals to form carbonates. This process was crucial because it reduced the amount of CO₂ in the atmosphere, helping to cool the planet and stabilizing temperatures. This early carbon cycle laid the groundwork for more stable atmospheric conditions and a more temperate climate conducive to life.

4. The Rise of Life and Oxygenation of the Atmosphere

One of the most transformative events in Earth’s atmospheric history was the emergence of life. Around 3.5 billion years ago, early microorganisms called cyanobacteria (or “blue-green algae”) developed the ability to perform photosynthesis, a process that converts carbon dioxide and water into organic matter and oxygen. Over millions of years, this photosynthetic activity increased oxygen levels in the oceans.

Initially, oxygen reacted with dissolved iron in the oceans, precipitating out as iron oxide and creating large deposits of banded iron formations. Only after this iron was mostly depleted could oxygen begin to accumulate in the atmosphere. This gradual accumulation led to the Great Oxidation Event (GOE) about 2.4 billion years ago, a period when atmospheric oxygen levels rose significantly for the first time. This transformation enabled more complex, oxygen-dependent life forms to evolve.

5. Atmospheric Layers and the Role of the Ozone Layer

As oxygen levels continued to rise, some of it converted into ozone (O₃) in the upper atmosphere through a reaction driven by sunlight. This newly formed ozone layer absorbed harmful ultraviolet (UV) radiation from the Sun, shielding Earth’s surface and making it safer for life to thrive on land. The development of the ozone layer was critical to sustaining the growth and evolution of life on Earth and allowed for the flourishing of complex organisms.

6. The Modern Atmosphere: A Balance of Gases

Today, Earth’s atmosphere is composed primarily of nitrogen (78%) and oxygen (21%), with trace amounts of argon, carbon dioxide, and other gases. This stable composition is maintained through a balance of natural processes, including photosynthesis, respiration, and the carbon and nitrogen cycles. The relatively stable levels of CO₂, though small in percentage, play a crucial role in regulating Earth’s climate through the greenhouse effect.

Human activities, however, are currently altering this balance, particularly through the release of large amounts of CO₂ and other greenhouse gases, impacting climate and potentially disrupting the delicate equilibrium of our atmosphere.

7. Looking Ahead: The Future of Earth’s Atmosphere

Understanding the origins and evolution of Earth’s atmosphere helps us appreciate its delicate composition and the intricate web of processes that sustain it. As humanity continues to influence the atmosphere’s composition, it is increasingly important to consider both the natural history of atmospheric change and the impacts of anthropogenic factors. By studying Earth’s atmospheric origins, we gain insight into the processes that sustain life on our planet and the challenges we face in preserving a stable, life-supporting environment.

The Earth's primordial atmosphere, which formed over 4.5 billion years ago, provides insight into the early conditions that shaped the planet’s surface and ultimately the evolution of life. Unlike the oxygen-rich atmosphere we experience today, the primordial atmosphere was very different—composed of volatile gases released by early planetary processes and cosmic events. Let’s delve into the origins of this ancient atmosphere, the mechanisms that influenced its development, and how it transformed over time.

Okay, what is the origin of earth's primordial atmosphere?

1. Formation of the Early Earth

Earth formed about 4.54 billion years ago through the process of accretion—a gradual accumulation of cosmic dust, gas, and debris from the early solar system. As this material coalesced, gravitational energy transformed into heat, creating a molten, highly volatile planet. During this period, known as the Hadean Eon, Earth’s surface was largely inhospitable, with extreme temperatures, intense volcanic activity, and constant bombardment by meteorites.

2. Degassing and Outgassing: The Birth of the Primordial Atmosphere

The first atmosphere, sometimes called the "primordial atmosphere," likely developed as Earth’s interior began to differentiate into layers, including a solid crust, mantle, and core. This differentiation was accompanied by outgassing—a process in which trapped gases were released from the molten rock. As volcanic activity became more prominent, large amounts of gases, primarily water vapor (H₂O), carbon dioxide (CO₂), nitrogen (N₂), methane (CH₄), ammonia (NH₃), and hydrogen (H₂), escaped from the Earth's crust and mantle, gradually enveloping the planet in a dense, heavy atmosphere.

Notably, oxygen was almost entirely absent from this early atmosphere. Instead, water vapor and carbon dioxide dominated, with nitrogen likely building up over time. These gases provided the foundation for the primordial atmosphere but were highly unstable due to the harsh environmental conditions on the young Earth.

3. Influence of Cosmic Events: The Late Heavy Bombardment

The formation of Earth’s atmosphere was further impacted by cosmic events such as the Late Heavy Bombardment (LHB), a period around 4 billion years ago when Earth and other inner planets were pummeled by asteroids and comets. These impacts not only affected Earth's surface but also contributed gases to the atmosphere. Comets, in particular, are composed primarily of ice and volatile materials, so their impacts introduced more water vapor, ammonia, and other gases into the atmospheric mix. Additionally, the heat from these collisions likely resulted in significant atmospheric loss, with lighter gases like hydrogen and helium escaping into space due to Earth’s relatively low gravitational pull at the time.

4. Cooling and Condensation: The Formation of Early Oceans

As Earth began to cool, water vapor in the atmosphere started to condense, resulting in heavy rains that filled basins to create the first oceans. This process of ocean formation significantly altered the composition of the atmosphere. Much of the CO₂ dissolved into the oceans, forming carbonates, which reduced its concentration in the atmosphere and allowed nitrogen to become more prominent. The oceans acted as a buffer, removing certain gases from the atmosphere and beginning the chemical cycling that would later support life.

5. Chemical Reactions and the Role of Ultraviolet (UV) Radiation

Without an ozone layer to filter UV radiation from the Sun, the Earth's surface was exposed to intense solar radiation. This UV radiation triggered various chemical reactions in the atmosphere, particularly affecting water and methane. Photodissociation—a process in which high-energy UV photons break down molecules—split water vapor into hydrogen and oxygen. The lightweight hydrogen escaped into space, while the heavier oxygen began to accumulate, though not in significant amounts.

6. Transition to a Secondary Atmosphere

As Earth’s environment stabilized and volcanic activity subsided, the primordial atmosphere gave way to a "secondary atmosphere." This transition involved further outgassing from volcanic eruptions and a gradual reduction in volatile gases. Around 2.5 billion years ago, cyanobacteria emerged and began photosynthesizing, releasing oxygen as a byproduct. Over millions of years, the accumulation of oxygen led to the Great Oxidation Event, which transformed Earth’s atmosphere into one that could support aerobic life forms and eventually paved the way for the diverse ecosystems we see today.

Summary: A Dynamic Evolution

The Earth’s primordial atmosphere was shaped by a complex interplay of planetary formation processes, cosmic impacts, volcanic activity, and early chemical reactions. It began as a heavy, reducing atmosphere filled with water vapor, CO₂, methane, and nitrogen. Through cooling, outgassing, and chemical transformations, this early atmosphere set the stage for the more stable conditions that eventually allowed for life to emerge. The evolution of the atmosphere is a testament to Earth’s dynamic systems and their capacity for dramatic transformation, showing us just how far our planet has come since its violent and volatile origins.

Conclusion:

We find that the secularist's view is one of infinite regress. Our next line of inquiry must be, "From whence cometh the accumulation of cosmic dust, gas, and debris from the early solar system?" There is no end to the inquiry because the secularist must ultimately rely upon his/her God-of-the gaps, i.e., so-called science.