Track spikes Emil Zatopek, a distance runner from Czech Republic, wore them during the 1952 Olympics in Helesinki. The front of the sole features a rigid or semi-rigid spike plate containing between 3 and 9 threaded holes called spike wells. Spikes can be screwed into each well using a spike wrench. Recently, some individuals have attempted to add a "through hole" at the bottom of the spike to make them easier to tighten, remove, and install. Some shoes have permanent or "fixed" spikes which are not meant to be removed. Spikes may break during competition. Track shoes are exceptionally light, some shoes
Emil Paleček molecular biology textbooks. During his life, Paleček authored over 300 scientific works, making him one of the most respected scientists in the Czech Republic. In 1989, Paleček became a member of the Czechoslovak Academy of Sciences. From 1993–97, he was a member of the Czech Academy of Sciences. In 1994, Paleček was one of the founding members of the Learned Society of the Czech Republic. In 2003, Paleček was the speaker for one of the Mendel Lectures. In 2009, the Emil Paleček award, named after Paleček, was setup by the President of the Czech Academy of Sciences. Paleček was still