 Two astronauts on the International Space Station implemented the second spacewalk this year on January 13th, installing a new lithium-ion battery for the solar power system of the orbital laboratory to replace the original nickel-hydrogen battery. American astronaut Shane Kimbro and European astronaut Thomas Peske worked nearly six hours outside the cabin on the same day, successfully installed three adapter boards and connected the wires to three lithium-ion batteries. The space station's solar power system uses a total of 48 nickel-metal hydride batteries to store electrical energy. According to plan, these batteries will be replaced by 24 lithium-ion batteries that are lighter, smaller, and more power-storing. Before the space walk, the ground control personnel had operated the robot to remove the old nickel-metal hydride battery and moved the lithium-ion battery to the target position, which greatly accelerated the installation progress. As the work progressed better than expected, the two also overfulfilled several tasks, including photographing registration hardware to prepare for future spacewalks. In the first spacewalk this year, which was implemented on January 6, Kimbro and another American astronaut, Peggy Whitson, have successfully installed three lithium-ion batteries. The six lithium-ion batteries installed twice were sent to the space station by the Japanese "鹳" cargo ship in December last year. The remaining 18 lithium-ion batteries are expected to be sent to space and completed in the next two to three years. Of the 12 old batteries that were removed, nine will be removed from the space station with the Japanese "鹳" cargo spacecraft later this month, and will be burned in the process of re-entry into the Earth's atmosphere, and three others will be temporarily stored outside the space station. This spacewalk is the fourth time for Kimbro and Pascal's first spacewalk. Peske was also the first French astronaut to walk in space for 15 years. On the eve of his departure, he tweeted a song on "Eve" on Twitter and excitedly wrote that it would be "a great day."
The windshield wiper transmission is an integral component of your vehicle`s windshield wiper system. It is a mechanical device made up of multiple linkages that connect the Wiper Motor to the two wiper arms, transferring the power generated from the rotational movement of the motor when it is activated by the wiper controls into the sweeping back and forth motion of the windshield wiper arms which the blades that clean the windshield are attached to. The wiper transmission helps the wiper motor and arms work together without having to hit each other. The multiple sections of linkage are joined and held together by rivets, while bushings are mounted to the Wiper Linkage arms and act similarly to bearings. Together, they make it possible for the different sections of the wiper linkage assembly to rotate and pivot.
On most vehicles, the wiper linkage assembly is located under the cowl at the base of the windshield and hidden out of view. This protects the mechanism from being exposed to outside elements and allows for it to operate quietly when being used.
Windshield wiper transmissions are the most common failed parts of the wiper system and can require replacement for multiple reasons. A Windshield Wiper Linkage assembly will make an annoying clunking or squeaking sound when they wear out from prolonged use over time. Turning on frozen wiper blades without properly loosening them from an icy windshield during the cold winter season is a notorious and common cause of damage to wiper systems; this forces the wiper motor to put excess stress on the wiper linkages and arms. This stress can cause plastic connectors to break, pivot points to elongate, and knurled wiper studs to round off. Heavy snow and ice can also force the wiper motor to put excess stress on the linkages and wiper arms, as can large amounts of dirt, causing a similar outcome.
A broken or damaged windshield wiper linkage assembly can cause the wipers to not work or work incompletely, which can be quite hazardous for you and other drivers around you. Therefore, if your wiper transmission has failed, obtaining a replacement and installing it quickly is highly recommended.
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Space station astronaut spacewalk battery