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Ernst Mach Postcard
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Signature Matte
18 pt thickness / 120 lb weight
Soft white, soft eggshell texture
-$0.16
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Ernst Mach Postcard
Ernst Waldfried Josef Wenzel Mach ( 18 February 1838 – 19 February 1916) was an Austrian physicist and philosopher, who contributed to the physics of shock waves. The ratio of one's speed to that of sound is named the Mach number in his honour. As a philosopher of science, he was a major influence on logical positivism and American pragmatism. Through his criticism of Newton's theories of space and time, he foreshadowed Einstein's theory of relativity.
His signature is added on lower left corner, at an angle.
Customer Reviews
4.9 out of 5 stars rating15.6K Total Reviews
15,615 Reviews
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5 out of 5 stars rating
By Ray A.September 30, 2025 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Very pleased with my order. All my prints were manufactured to a very high standard to my exact specifications and edited additions.
5 out of 5 stars rating
By Paul I.February 4, 2021 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Creator Review
I had never seen these classic science fiction images and most of my friends have not seen them either. They are like little treasures! Amazing quality and fun to send people!
5 out of 5 stars rating
By Jennifer W.November 28, 2022 • Verified Purchase
Post Card, Size: Standard Postcard, Paper: Signature Matte, Envelopes: None
Zazzle Reviewer Program
I joined Postcrossing a few months ago and wanted postcards to represent my state well. I found them on Zazzle. I purchased numerous cards and was impressed with all of them. Excellent! The colors are beautiful. The cards have the exact look I wanted. I couldn't be happier.
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Product ID: 256714142007850890
Created on: 3/18/2023, 3:20 PM
Rating: G
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