Question

write a letter on visiting to a hill station in 150 to 200 words

Answer 1

A hill station is a beautiful place to visit. During my summer vacation, i want to shimla. My uncle lives there. He invited me to spend my holidays in shimla. I boarded the shimla mail and reached there early in the morning.
essay about vacation with family, summer vacation paragraph, my summer vacation paragraph, summer vacation essay writing, hill station essay, my summer holidays essay, essay about trip with family, short paragraph about life, paragraph on visit to a hill station, how i spent my summer vacation paragraph, essay about holiday trip, my summer vacation essay, a visit to a hill station essay, diary entry on hill station, online essay writing service, do my essay for me, help me write my essay, help me with my essay, top essay writing service, professional essay writing service, essay editing service, best essay writing service, essay writing service, write my essay for me, do my essay, write my essay, write an essay for me, essay writing help, essay service, do essay for me
After kalka the train moved very slowly. It passed through many tunnels. It moved like a snake. I was happy to enjoy the natural scenery and high mountains. But the view at shimla was very charming.

There wear ridge, chotta shimla, lakkar bazar, the temple of jakkhu. I visited kufri and had a view of snow. When i returned home. I brought fruits and beautiful presents. Its memory is green in my mind.
..
.
..
.
.
.
for more follow me and mark brainliast

Answer 2

Answer:

The Tipler cylinder is a cylinder of dense matter and infinite length. Historically, Dutch mathematician Willem Jacob van Stockum (1910–1944) found Tipler cylinder solutions to Einstein’s equations of general relativity in 1924. Hungarian mathematician/physicist Cornel Lanczos (1893–1974) found similar Tipler cylinder solutions in 1936. Unfortunately, neither Stockum nor Lanczos made any observations that their solutions implied closed timelike curves (i.e., time travel to the past).

In 1974, American mathematical physicist/cosmologist Frank Tipler’s analysis of the above solutions uncovered that a massive cylinder of infinite length spinning at high speed around its long axis could enable time travel. Essentially, if you walk around the cylinder in a spiral path in one direction, you can move back in time, and if you walk in the opposite direction, you can move forward in time. This solution to Einstein’s equations of general relativity is known as the Tipler cylinder. The Tipler cylinder is not a practical time machine, since it needs to be infinitely long. Tipler suggests that a finite cylinder may accomplish the same effect if its speed of rotation increases significantly. However, the practicality of building a Tipler cylinder was discredited by Stephen Hawking, who provided a mathematical proof that according to general relativity it is impossible to build a time machine in any finite region that contains no exotic matter with negative energy.