Show sees month long day as future po possibility hundreds of millions of years hence the day on earth will be as long as the month due to the retarding effect of tidal friction on the earths rotation says popular mechanics magazine doctor josef J johnson of the california institute of technology who has been studying the subject says that when the day and month become equal the earth always will present the same hemisphere toward the moon as even today the moon presents one side continuously to the earth the two bodies will revolve as ag though attached to the opposite ends of a rigid pole the result of the gradual slowing down of the earth under the pull of solar tidal friction doctor johnson concludes that the day will not become longer than the month present day knowledge of the plasticity of the earths interior leads hl him to the conclusion that the rigid bar situation will continue indefinitely tidal forces will through Iso deformation raise a permanent tide in the body of the earth which will keep the day in step with the month forever halt half the earth will never seethe moon and theoph the other halt half will always have the moon in its sky |