Lecture

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 520 520"
>
    <path
        d="M246.208 203.616A54.978 54.978 0 0 0 210 190.002a55.047 55.047 0 0 0-41.433 18.791c-9.678 11.061-14.469 25.228-13.492 39.893.866 12.987 6.173 24.983 15.058 34.28l19.934-22.78c-7.057-9.262-6.88-22.542 1.078-31.637a25.027 25.027 0 0 1 18.839-8.545 25.007 25.007 0 0 1 16.469 6.191c9.096 7.958 11.033 21.098 5.268 31.215l22.777 19.929c16.531-22.747 13.273-54.855-8.29-73.723zM355.129 165.365c-.157 6.524-4.548 12.064-10.474 14.013l-.718 29.817c22.097-1.984 39.885-20.563 40.429-43.125.548-22.773-16.248-42-38.305-45.025l-.719 29.809a15.035 15.035 0 0 1 5.612 3.708 15.024 15.024 0 0 1 4.175 10.803zM324.871 164.635c.157-6.524 4.548-12.064 10.474-14.013l.718-29.817c-22.097 1.984-39.885 20.563-40.429 43.125-.548 22.773 16.248 42 38.305 45.025l.719-29.809a15.035 15.035 0 0 1-5.612-3.708 15.024 15.024 0 0 1-4.175-10.803z"
    />
    <path
        d="M340.005 170.133c2.76 0 5.06-2.247 5.126-5.009a5.1 5.1 0 0 0-1.415-3.665 5.096 5.096 0 0 0-3.592-1.59l-.129-.001c-2.76 0-5.06 2.247-5.126 5.009a5.1 5.1 0 0 0 1.415 3.665 5.096 5.096 0 0 0 3.592 1.59zM105 70h320c5.514 0 10-4.486 10-10s-4.486-10-10-10H105c-5.514 0-10 4.486-10 10s4.486 10 10 10zM45 280c-5.514 0-10 4.486-10 10s4.486 10 10 10 10-4.486 10-10-4.486-10-10-10zM279 427c-5.514 0-10 4.486-10 10s4.486 10 10 10 10-4.486 10-10-4.486-10-10-10zM209.968 270.047a24.97 24.97 0 0 1-12.362-3.292l-19.949 22.799a54.959 54.959 0 0 0 32.295 10.493 55.043 55.043 0 0 0 37.956-15.188l-22.778-19.931a25.032 25.032 0 0 1-15.162 5.119zM200.083 256.33a15.012 15.012 0 0 0 9.884 3.717c4.336 0 8.459-1.87 11.312-5.129l.001-.002.001-.001c5.453-6.234 4.819-15.742-1.415-21.196a15.007 15.007 0 0 0-9.884-3.717 15.03 15.03 0 0 0-11.313 5.13c-5.453 6.234-4.819 15.743 1.414 21.198zM290.224 390l62.221 80h29.862l-35.556-80zM470 160c-8.271 0-15 6.729-15 15s6.729 15 15 15 15-6.729 15-15-6.729-15-15-15zM70 108c-8.271 0-15 6.729-15 15s6.729 15 15 15 15-6.729 15-15-6.729-15-15-15z"
    />
    <path
        d="M320 300h95V80H115v30h105a5 5 0 0 1 0 10H115v220h300v-30h-95c-2.762 0-5-2.238-5-5s2.238-5 5-5zm-70-195c5.522 0 10 4.477 10 10s-4.478 10-10 10c-5.523 0-10-4.477-10-10s4.477-10 10-10zm8.91 182.842a65.05 65.05 0 0 1-48.958 22.205 64.97 64.97 0 0 1-42.793-16.089c-13.071-11.437-20.905-27.278-22.061-44.608-1.155-17.33 4.507-34.072 15.944-47.143A65.046 65.046 0 0 1 210 180.001a64.972 64.972 0 0 1 42.793 16.089c26.982 23.609 29.727 64.768 6.117 91.752zM290 315c-5.523 0-10-4.478-10-10 0-5.521 4.477-10 10-10 5.522 0 10 4.479 10 10 0 5.522-4.478 10-10 10zm-4.364-151.31c.345-14.289 6.17-27.651 16.403-37.627 10.535-10.269 24.521-15.786 39.271-15.427 29.976.722 53.775 25.697 53.055 55.673-.345 14.289-6.17 27.651-16.403 37.627-10.217 9.958-23.689 15.443-37.938 15.443-.444 0-.886-.005-1.332-.016-29.977-.722-53.777-25.696-53.056-55.673zM430 350H100c-8.271 0-15 6.729-15 15s6.729 15 15 15h330c8.271 0 15-6.729 15-15s-6.729-15-15-15zM147.694 470h29.861l62.222-80H183.25z"
    />
</svg>