Does truth does not stay true whatever year it is? Is it a ridiculous claim?
Defend it.
It's very bold to say Truth is not temporal. Or is it just that truth is "true" for its time, letting on another layer of abstraction; this is "true" now; that was then. Overall, the Truth then would be the description of these changes - again making time a dimension to Truth. To me, it must at least be examined as a function of time, if inevitably it turns out it is not - all the easier.
What would you say to this observation if you care to make it as it’s there for all to see if you care to look? The moon and Venus meet in the evening sky this week.The moon will be only 14% illuminated and so will appear as a slender crescent in the twilight sky. As the evening becomes fully dark, keep a lookout for the whole disc of the moon suddenly become visible! This is known as “earthshine” and is created by sunlight bouncing off Earth back up onto the moon’s dark side. If you care to think about it it’s simple physics/ geometry just like the normal phases of the moon. A truth observed and accepted by every astronomer. A truth that you alone are unwilling to accept.
Venus is now approaching its highest visible altitude in the evening sky for this apparition. It will remain there until the beginning of April. After that it will nose-dive towards the horizon, and by the end of May it will have disappeared into the glare. On 3 June, unseen from Earth, it will pass between our planet and the sun. It will then reappear low in the morning sky by the end of the month.
So, on the one side we have every single astronomer in the world, both professional and amateur, with telescopes ranging from little things you can carry out into the back yard all the way up to humongous things many meters in diameter, plus radio telescopes ranging all the way up to 500 meters in diameter, and linked arrays, and gravity-wave detectors, and neutrino detectors; and on the other side of the issue we have Samuel Rowbotham, who made one measurement along a waterway and thought he detected no curvature.
I wonder which side carries more weight?
Rowbotham thought he had found an anomaly. Anomaly-hunting is exactly what pseudoscientists do. Typically, like him, they have no formal education in the field they are engaging in, and they present their anomalies without understanding the mechanisms behind what they are observing, or even how to use their equipment properly. They claim there is no value in education, and that all they need is their "common sense."
Call me a fool, but I'll believe a million astronomers on a question of astronomy before I believe one guy who thinks he's proved them all wrong.
We see the moon because it reflects the light of the sun, and to a much lesser degree, because it reflects the sunlight reflected off the Earth. There is nothing harmful in this light. The sun shines because of thermonuclear reactions in its core, and its light is dangerous because it can cause sunburns and skin cancer, though proper precautions can mitigate the risk down to acceptable levels.