In physics, the Lorentz transformations (or transformation) are coordinate transformations between two coordinate frames that move at constant velocity relative to each other. The transformations are named after Hendrik Lorentz, a Dutch physicist in electrodynamics.
The most common form of the transformation is expressed as:
where (t, x, y, z) and (t′, x′, y′, z′) represent an event’s coordinates in two frames with relative velocity v, c is the speed of light, and the Lorentz factor:
The 42 Negative Confessions – E.A. Wallis Budge
From Rosicrucian Digest, No. 1, 2007
One of the best-known sections of the Book of the Coming Forth by Day (The Book of the Dead) in the Papyrus of Ani is the Negative Confession. The forty-two Gods and Goddesses of the Nomes of Egypt conduct this initiatory test of the soul before the scale of Ma’at. In this translation by pioneering Egyptologist E. A. Wallis Budge, we hear the initiate’s assertion of blamelessness before the Court of Osiris. For clarity, divine names and city names in parentheses have been added to the 1895 text of Chapter 125 from Budge’s 1913 edition.
1. Ani saith: “Hail, thou whose strides are long (Usekh-nemmt), who comest forth from Annu (Heliopolis), I have not done iniquity.”
2. “Hail, thou who art embraced by flame (Hept-khet), who comest forth from Kheraba, I have not robbed with violence.” Continue reading
History of the Devil
By Paul Carus, 
THE IDEA OF SALVATION IN GREECE AND ITALY.
Part 1 Here
In the days of Augustus and his successors the people were taught to expect salvation, the dispensation of justice, protection, peace, and prosperity from the emperor; and just as we have to-day monarchies where the king regards himself as the Anointed One by the grace of God and a representative of God on earth, so the Roman emperor arrogated to himself divine honors, and even philosophers such as Seneca did not hesitate to acknowledge the claim. The practical significance of this view is that the government should be regarded with religious awe, and its officers, as such, are divine. The Christians who refused to worship before the emperor’s images must have appeared to the Romans of those days as anarchists and rebels. But when Nero committed matricide and other most outrageous crimes, the belief in the emperor’s divinity dwindled away, and the idea of the suffering God, the man who died on the cross because he would rather be than appear just, gained ground among the people.
Christianity was not the only religion which promised deliverance from evil through the saving power of blood and by means of a vicarious atonement, for we know of the immortality-promising mysteries, and especially of the cult of Mithras, which had embodied many ideas and ceremonies that are also met with in Christianity. Continue reading
Legends of the Dominican Republic
By Robert Nickel, 2011 [Edited]
Although myths and legends are by definition largely untrue, each one of us has a little inkling in us that suspects there may be some truth to the story. Regardless of your assertion that you do not believe in such things, it is still fun to hear the mythical stories tied to a vacation destination. They give a great insight into the people and culture of the region, as well as offer an explanation on seemingly strange behavior you might encounter. Here are some of the most prevalent legends of the Dominican Republic.
Fireflies are fairly common in the Dominican, but are referred to as the Nimitas. The people believe Nimitas are the souls of the dead watching their loved ones. Their lights are a reminder for everyone that they are there and watching every move you make. Continue reading
This most attractive example is in the apparatus collection at Bowdoin College. It has no maker’s name and is about 40 cm high.
The gyroscope was invented in 1852 by the French experimental physicist Leon Foucault (1819-1868) as part of a two-pronged investigation of the rotation of the earth. The better-known demonstration of the Foucault pendulum showed that the plane of rotation of a freely-swinging pendulum rotated with a period that depends on the latitude of its location.
His gyroscope was a rapidly rotating disk with a heavy rim, mounted in low-friction gimbals. As the earth rotated beneath the gyroscope, it would maintain its orientation in space. This proved to be hard to do in practice because the frictional forces bring the spinning system to rest before the effect could be observed. The gimbal bearings also introduce unwanted torque. But, the principle is well-known to all children who move their toy gyroscopes about and observe that the spinning disk stays in the same orientation. Continue reading
Guardian of the Horizon
By Andrew Bayuk
The Sphinx of Giza [Her-em-Akhet] is a symbol that has represented the essence of Egypt for thousands of years. Even with all of the pictures that we see of the Sphinx, nothing can really prepare you for the time that you finally see the Sphinx with your own eyes. Here’s a look at the Sphinx that will give you a hint of what you can expect to see if you visit Egypt.
Carved from the bedrock of the Giza plateau, the Sphinx is truly a mysterious marvel from the days of ancient Egypt. The body of a lion with the head of a king or god, the sphinx has come to symbolize strength and wisdom. Continue reading