Tipler Cylinder
TIPLER CYLINDER TIME TRAVEL A Tipler Cylinder also called as Tipler time machine, the tipler cylinder is a cylinder of dense matter and infinite length.The tipler cylinder specialty is travel into the past, not the future,is a hypothetical object theorized to be a potential mode of time travel. Tipler cylinder could only allow time travel if its length were infinite or with the existence of negative energy. Willem Jacob van Stockum found Tipler cylinder solution to Einstein's equations of general relativity in1924. Later on in Kornel Lanczos found similar Tipler cylinder solution in 1936. Then in 1974, Frank Tipler's analysis the above solution of uncovered that a massive cylinder of infinite length spinning at high speed around its long axis could enable time travel. The tipler cylinder is not a practical time matchin, since it needs to be infinitely long. An objection to the practicality of building a Tipler cylinder was discovered by Stephen Hawkin
