Pages 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 8666 result(s) returned

Digestive System Labeling
This video displays the digestive system
with its organs.

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Acknowledgements

This free course was written by Ms Candida Clark

Except for third party materials and otherwise stated (see terms and conditions), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence.

The material acknowledged be
Author(s): The Open University

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8.3.6 Deep silicon etching

MEMS structures often require etching to a much greater depth than is needed for microelectronics. A rate of 1–2 μm min−1 may be quite sufficient for making transistors less than 1 mm deep, but to etch through 600 mm of silicon to form an accelerometer would take all day. The advent of MEMS and wafer-level packaging applications, therefore, brought a need for yet faster anisotropic etches, requiring advances both in the process and in the etching equipment.

Capacitive co
Author(s): The Open University

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2.6 Summary of Section 2

The results of the visual attention experiments we have considered can be interpreted as follows.

  • Attention can be directed selectively towards different areas of the visual field, without the need to re-focus.

  • The inability to report much detail from brief, masked visual displays appears to be linked to the need to assemble the various information components.

  • The visual information is captured in parallel, but assemb
    Author(s): The Open University

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Posterior Fossa Tumor - Cranial Nerves Exam - Spinal Accessory (CN XI) Sub-exam - Patient 9
Patient is a 58-year-old white male with a history of acoustic neuroma that was resected in 1990. He has residual cranial nerve palsies on the right side and experiences tremors, ataxia and disequilibrium. His wife reports that she has noticed an increase in right hand tremor for the past year or so. The tremor worsens as the day progresses and occurs with activity. Patient reports an increase in balance problems while standing over the past 4 months. He has noticed that he staggers a step or t
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12.1.1 Survey questionnaires

Questionnaires are lists of questions that enable information to be gathered efficiently from a relatively large number of respondents. Most questionnaires require a fixed type of response, such as a choice between available answers, or along a scale of response. For example, a product design questionnaire might suggest, ‘I found the product easy to use’ and provide a five-point scale of response from ‘agree strongly’ to ‘disagree strongly’. Or a question might be, ‘how often do
Author(s): The Open University

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3.3 Division

Division is probably the most awkward of the four arithmetic operations. Since you may have a calculator, you do not need to be able to carry out complicated divisions by hand, but you do need to carry out simple divisions in order to check your calculator calculations. Division is the reverse process of multiplication. The quantity 12 ÷ 3 tells us how many times 3 goes into 12. Since 4 × 3 = 12, 12 ÷ 3 = 4.

Author(s): The Open University

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Welsh history and its sources
This free course, Welsh history and its sources, is a teaching and learning resource for anyone interested in Welsh history. It contains study materials, links to some of the most important institutions that contribute to our understanding of the history of Wales, and a pool of resources that can help you understand Welsh history and the way it is studied. Included in the material is a taster of the Open University course Small country, big history: themes in the history of Wales (A182).
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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

Robert Sheldon Triangle
Sheldon discusses how to properly teach triangle to young band members.
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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to choose from on a range of subjects. 

Find out more
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Digital Nepal
Nepal is one of the poorest countries in the world, so just how has it managed to develop a wireless network and promote innovation? This collection explores how Nepal has developed its digital technological infrastructure, how it is still developing from a complex political background and gives a sense of how different cultures around the world relate to digital technology. The videos look at the country's recent history, with particular focus on education, health, language and the economy. Th
Author(s): The iTunes U team

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Teacher Tipster-Cool Containers for Storage and Games
Mr. Smith shows teachers how to creatively use containers for storage and materials in the classroom. He recycles by using cupcake containers, gum containers, chip containers, etc. Good idea! (3:41)
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Teaching secondary science
This free course, Teaching secondary science, will identify and explore some of the key issues around science pedagogy in secondary schools. Through coming to understand these issues and debates, you will reflect on your practice as a science teacher and develop a greater awareness of the wider context of science education and how this affects science in the secondary school curriculumAuthor(s): Creator not set

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Breakingviews: China's reluctant spenders
July 12 - China's export machine is slowing down, so where are the consumers who were supposed to ride to the rescue of the world's second-largest economy?
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Getting Started: 02 Sharing your ideas
Create portfolios, add multimedia elements, and convert files to FLV for playback. Add permissions to PDFs and portfolios.
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RES.11-001 CITE Reports (MIT)
Created in 2012 at the Massachusetts Institute of Technology, the Comprehensive Initiative on Technology Evaluation (CITE) is the first-ever program dedicated to developing methods for product evaluation in global development. CITE produces technology evaluations that provide evidence for data-driven decision-making by development workers, donors, manufacturers, suppliers, and consumers themselves. In addition, CITE evaluations lead to significant developing insights, helping us better understan
Author(s): MIT Comprehensive Initiative on Technology Evaluat

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

Mysterious Ball Lightning
This video shows many different incidents of ball lightning. Ball lightning may be an atmospheric electrical phenomenon, the physical nature of which is still controversial. The term refers to reports of luminous, usually spherical objects which vary from pea-sized to several meters in diameter. It is sometimes associated with thunderstorms, but unlike lightning flashes, which last only a fraction of a second, ball lightning reportedly lasts many seconds. Video is set to music and no words are s
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4.4 An introduction to WiFi

WiFi (from 'Wireless Fidelity') is used to connect devices together in one of two network configurations known as 'ad hoc' and 'infrastructure'. We shall explain these terms shortly. (As a starting point, though, you could look up the terms 'ad hoc' and 'infrastructure' in your dictionary.)

In wireless LANs, nodes are usually referred to as stations – probably because each communicating device acts as a radio station with transmitter and receiver. These functions, and the neces
Author(s): The Open University

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Combining Entrepreneurship and Environmental Science
Jesko von Windheim combines business savvy and scientific understanding in his new role at Duke as the director of the Nicholas School's Environmental Innovation and Entrepreneurship Center. A founder of multiple companies himself, von Windheim was already teaching entrepreneurship courses at Duke when he recently joined the Nicholas faculty to lead the new environmental entrepreneurship certificate program. Classes in the two-year program will train students to understand business models and
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Entropy and the Second Law of Thermodynamics: Disorder and the Unavailability of Energy
OpenStax College
Define entropy and calculate the increase of entropy in a system with reversible and irreversible processes. Explain the expected fate of the universe in entropic […]

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