Free online greeting card maker or poetry art generator. Create free custom printable greeting cards or art from photos and text online. Use PoetrySoup's free online software to make greeting cards from poems, quotes, or your own words. Generate memes, cards, or poetry art for any occasion; weddings, anniversaries, holidays, etc (See examples here). Make a card to show your loved one how special they are to you. Once you make a card, you can email it, download it, or share it with others on your favorite social network site like Facebook. Also, you can create shareable and downloadable cards from poetry on PoetrySoup. Use our poetry search engine to find the perfect poem, and then click the camera icon to create the card or art.
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Enter Poem or Quote (Required)Required why did the tea kettle whistle? I take cold tap water heat applied rolling bubbles hissing weak turbulence molecules escape into gas phase pressure inside rises above atmospheric pressure steam accelerates into a high-speed jet interacts with surrounding air and the edges of the whistle alternating regions of higher and lower pressure again and again the whistle a cavity at a particular resonant frequency air inside the chamber begins oscillating sound wave modifies airflow through the opening altered airflow produces another pressure fluctuation reinforces the sound wave alters airflow feedback loop frequency determined by geometry chamber opening air column not simply how hot the water is perhaps best explained I turned on the burner water got hot steam came out the whistle blew why do I have incurable cancer? ========
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