No, a homunculus is not a real creature. It is a concept in alchemy and folklore, representing a miniature human creature created through mystical or artificial means. It is not scientifically possible to create a living, miniature human in reality.

Nicholas Flamel is a legendary alchemist from the 14th century, known for achieving the philosopher's stone. There are no historical records of him actually writing a book. The idea of him writing a book is referenced in fiction, particularly in the Harry Potter series by J.K. Rowling.

The Alchemists mostly wanted to find a means by which lead could be transformed into gold.

It was not based on evidence and experiment.

Alchemy is now what we refereed as chemistry. Most of the ancient scientist practiced alchemy. With the church trying to make people follow the practice of the monks, didn't allow it and that was why it was kept quiet.

There was a time when the church had books control. Knowledge was not common. Alchemy was beginning of chemistry we have today. Because of the control of the church, there was a law concerning the contents of manuscripts. Early alchemists hid their work because the punishment was heavy.

Many ancient scientists tried to achieve that. One of the supreme quests of alchemy is to transmute lead into gold. Lead (atomic number 82) and gold (atomic number 79) are defined as elements by the number of protons they possess. Changing the element requires changing the atomic (proton) number. The number of protons cannot be altered by any chemical means. However, physics may be used to add or remove protons and thereby change one element into another. Because lead is stable, forcing it to release three protons requires a vast input of energy, such that the cost of transmuting it greatly surpasses the value of the resulting gold. Transmutation of lead into gold isn't just theoretically possible - it has been achieved! There are reports that Glenn Seaborg, 1951 Nobel Laureate in Chemistry, succeeded in transmuting a minute quantity of lead (possibly en route from bismuth, in 1980) into gold. There is an earlier report (1972) in which Soviet physicists at a nuclear research facility near Lake Baikal in Siberia accidentally discovered a reaction for turning lead into gold when they found the lead shielding of an experimental reactor had changed to gold.

Now a day, people study chemistry instead and you can find teachers in most universities.

It is thought that traditional alchemy originated in Egypt because it can be traced back to some of the Greek and Roman writings in Egypt when the country was under Roman rule.

Nicolas Flamel was a successful French scrivener and manuscript-seller. After his death Flamel developed a reputation as an alchemist. However, these legendary accounts only appeared in the seventeenth century. Most of the books that you could read about him are fiction. The historical Flamel lived in Paris in the fourteenth and fifteenth century and his life is one of the best documented in the history of medieval alchemy. He ran two shops as a scribe and married Perenelle in 1368. She brought the wealth of two previous husbands to the marriage. The French Catholic couple owned several properties, and contributed financially to churches, sometimes by commissioning sculptures. Later in life they were noted for their wealth and philanthropy. There is nothing legendary about the life of Nicolas Flamel. The Bibliotheque Nationale in Paris contains works copied in his own hand and original works written by him. All the official documents relating to his life have been found: his marriage contract, his deeds of gift, his will. His history rests solidly on those substantial material proofs for which men clamor if they are to believe in obvious things. To this indisputably authentic history, legend has added a few flowers. But in every spot where the flowers of legend grow, underneath there is the solid earth of truth.

Nicolas Flamel was buried in the Middle-Age church "Saint-Jacques-de-la-Boucherie". This church was destroyed in the great revolution time, but the high tower has stayed until now. It is called "La Tour Saint-Jacques" and it's in the centre of Paris, near the river Seine and the "Hôtel de Ville".

You cannot. Brass is a mixture of the elements copper and zinc. Gold is a separate element in and of itself. While it is technically possible to transmute elements with a particle accelerator, this is not a technology that most people can get. Even then the process is prohibitively expensive, far greater than the value of any gold you get out of it, and requires and advanced knowledge of nuclear physics. Brass itself could not be used because it is a mixture of two different elements. When new atoms are made in a particle accelerator they have to be of a particular element and isotope selected for the purpose of the experiment.

yes

There is not a single writing telling who his parents were and there is nothing legendary about the life of Nicolas Flamel. The Bibliotheque Nationale in Paris contains works copied in his own hand and original works written by him. All the official documents relating to his life have been found: his marriage contract, his deeds of gift, his will. His history rests solidly on those substantial material proofs for which men clamor if they are to believe in obvious things. To this indisputably authentic history, legend has added a few flowers. But in every spot where the flowers of legend grow, underneath there is the solid earth of truth.

No

No, the book that Nicholas Flamel has in "The Alchemyst" by Michael Scott is fictional. The author has created this book as part of the story's plot and it does not exist in reality.

People should stop playing video games and into the outdoors if not I will turn into a werewolf and sneak up on you and say boo and scare you :D

Alchemy is a science like the ancient quemistry and it was not an occult practice.

The science once known as alchemy has for the most part evolved in to modern chemistry. Both share the same word etymology, but there are some major differences between the two sciences, and both emphasize upon these differences. However, alchemy is a science that is seldom practiced in the modern era.

A "gateway" which is where you get power from, a substance of any sort, and a strong mind.

It does.

You can't. Alchemy is a pseudoscience that didn't really work, though it did help pave the way for modern chemistry.

Alchemists toyed with various chemical reactions without understanding them. They did not realize that gold is an element and so cannot be produced through chemical means. Nuclear physicists can turn other elements into gold using particle accelerators, but the process costs far more than the value of gold produced.

Of course it is. Whether you can get it to work, and exactly what 'work' means, is another matter. It is obvious that, unless one has a clear idea of the objective, and at least some scientific application of methodology (and, even for many of the greatest Alchemists, this required the dedicated work of a lifetime), one could 'do Alchemy' until the cows came home without the slightest prospect of success. Perhaps you just want a pile of gold? Remember that the Alchemists say, 'Aurum Nostrum Non Vulgi' - 'Our gold is not that of the common man'. Without wishing to cause offence (although I probably will, and for that I apologise), I feel that the way you have phrased the question suggests you might have more success in another field.