Cushions piston on the upstroke, reducing the need for shock absorbers. Boosts the piston down stroke drive. Now we have measured experimentally and analyzed theoretically the Ti 2p X-ray photoemission spectra (XPS) as well as the resonant enhancement of valence photoemissionat the Ti 2p threshold for Ti2O3. Kid(ren) Ebook as https://okada4dsg.com/