In the year 1800, Sir William Herschel discovered the existence of infrared by performing an experiment very similar to the one we show here.Herschel passed sunlight through a prism. As sunlight passes through the prism, the prism divides it into a rainbow of colors called a spectrum.n the year 1800, Sir William Herschel discovered the existence of infrared by performing an experiment very similar to the one we show here.
There are 3 easy ways to find out your card account number: 1  If your PayPal Prepaid Card is linked with your PayPal Account, log-in to your online Account Center. From the main menu, select, Add/Manage Money and then Direct Deposit.. 2  If you are enrolled in our real-time alerts service, text DIRECT to 22622.
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