The first commercially made birdfeeder was sold in 1926. However, people have been feeding birds since ancient times. It is mentioned in the Old Testament of The Bible.
John Flamsteed invented the first test tube.
The cathode ray tube was invented in 1897 by Ferdinand Braun.
Some creative and fun tube crafts that can be made at home include making a kaleidoscope, creating a pen holder, constructing a bird feeder, designing a jewelry organizer, and building a mini rocket launcher.
To effectively get rid of black birds from your bird feeder, you can try using feeders designed to deter larger birds, such as tube feeders with small perches. You can also try placing feeders in areas where black birds are less likely to visit, such as near dense shrubbery or trees. Additionally, using seed mixes that are less appealing to black birds, such as nyjer or safflower seeds, can help discourage them from visiting your feeder.
feeder spring
To effectively keep black birds away from your bird feeder, you can try using feeders designed to deter larger birds, such as tube feeders with small perches. You can also try using safflower seeds or nyjer seeds, which are less appealing to black birds but still attract smaller birds like finches and chickadees. Additionally, placing the feeder in a more open area away from trees or shrubs can make it harder for black birds to access.
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Lee De Forest invented the electron tube in 1906.
Ever since the first ipod was invented people/scientists/workers have been joining ideas to make an invention.
The first viscometer was invented by Sir William Thomson in 1866. His design was based on the principle of measuring the time it took for a liquid to flow through a capillary tube.
Hippocrates first invented a chest tube that was constructed out of metal. They were not in wide spread use until the influenza epidemic of 1917.
the first test tube babies were invented in great Britain Louise Joy Brown July 25, 1978 by Dr. Patrick Steptoe and Robert Edwards