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- Просмотров 1 684 935
LiacosEM
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Добавлен 28 янв 2013
Lighten your load in the classroom and bring out the very best in your students with our high-quality educational science videos.
Simply view the trailers, and then head over to www.liacoseducationalmedia.com and download the outstanding worksheets and student activities from our website. You can view the videos in their entirety on ClickView, Learn360 or SAFARI Montage. You'll save yourself and your colleagues hundreds of hours of preparation time, and you'll be providing your students with the very best learning resources.
Simply view the trailers, and then head over to www.liacoseducationalmedia.com and download the outstanding worksheets and student activities from our website. You can view the videos in their entirety on ClickView, Learn360 or SAFARI Montage. You'll save yourself and your colleagues hundreds of hours of preparation time, and you'll be providing your students with the very best learning resources.
How To Use a Compass to Draw Circles
A simple demonstration of how to use a compass to draw a circle on a piece of paper.
For any Science teachers watching this, please visit the website linked to below to download a few activities that your students can do that will help them get a feeling for the vast scale of the solar system! Some of the activities require a compass!!
www.liacoseducationalmedia.com/astronomy-activities
For any Science teachers watching this, please visit the website linked to below to download a few activities that your students can do that will help them get a feeling for the vast scale of the solar system! Some of the activities require a compass!!
www.liacoseducationalmedia.com/astronomy-activities
Просмотров: 1 740
Видео
Radiocarbon Dating: How it works.
Просмотров 3927 месяцев назад
We take a look at how scientists use the presence of radioactive carbon-14 atoms in nature to determine the age of ancient artifacts. Visit www.liacoseducationalmedia.com/shedding-light-on-nuclear-radiation-episode-6-radiocarbon-dating to download the worksheet and to find out how to watch the whole episode. Nuclear Radiation can be very dangerous but it can also be very useful to us. The Shedd...
Making and Testing Oxygen. An awesome practical activity for students.
Просмотров 2598 месяцев назад
Whenever anything burns, it's chemically reacting with oxygen. Increasing the amount of oxygen makes it burn better. Download the student prac sheet here: www.liacoseducationalmedia.com/chemistry-practical-activities Teachers and students, check out the 8-part Shedding Light on Atoms video series. Episode 1: The Dawn of Modern Chemistry Episode 2: Oxygen Everywhere Episode 3: The Discovery of A...
Making and Testing Carbon Dioxide
Просмотров 3629 месяцев назад
A simple practical activity for students studying chemical reactions. When limestone (calcium carbonate) reacts with hydrochloric acid, carbon dioxide is produced. Download the activity sheet at www.liacoseducationalmedia.com/chemistry-practical-activities
Trip Wire Balloon Bursters - A Fantastic Engineering Challenge for Students
Просмотров 797Год назад
In this practical activity, students have to design and build a contraption that automatically bursts a balloon when a person walks through a trip wire which triggers the contraption. To build their contraption, students can use retort stands, boss-heads, clamps, rulers, cups, plasticine, icy-pole sticks, sticky tape, straws, pins, string, and, of course, a balloon. Visit www.liacoseducationalm...
Half-Life and Radioactivity
Просмотров 423Год назад
This video explains what a radionuclide's "half-life" is. The video is a short excerpt from Shedding Light on Nuclear Radiation Episode 5: Half-Life and Activity. The Shedding Light on Nuclear Radiation series teaches students all the essentials of nuclear radiation. Each program comes with an outstanding student activity sheet. Visit the Liacos Educational Media website for details. www.liacos...
Beta-Plus Decay
Просмотров 4,2 тыс.Год назад
Beta-plus decay is an atomic process that produces positively charged electrons (which are called positrons). The positrons then soon collide with electrons (normal electrons) and the two completely annihilate one another. This process produces two gamma rays. This video is a short excerpt from Shedding Light on Nuclear Radiation Episode 4: Beta-Plus Decay. The Shedding Light on Nuclear Radiati...
Beta-Minus Radiation: An Introduction for Students.
Просмотров 363Год назад
A short video that explains what beta-minus radiation is. This video is a small excerpt from Shedding Light on Nuclear Radiation Episode 3: Beta-Minus and Gamma Radiation. The Shedding Light on Nuclear Radiation series (which is coming soon to ClickView, Learn360 and Safari Montage) makes it easy to learn all the essentials of nuclear radiation, including • atomic structure, isotopes, and nucli...
Alpha Radiation: A Simple Introduction for Students
Просмотров 546Год назад
A short video that explains what alpha radiation is. This video is a small excerpt from Shedding Light on Nuclear Radiation Episode 2: Alpha Radiation. The Shedding Light on Nuclear Radiation series makes it easy to learn all the essentials of nuclear radiation, including • atomic structure, isotopes, and nuclides; • what alpha, beta, and gamma radiation are and how we have learned to harness t...
Electric Circuits Simulation Software (with Student Activity Sheets)
Просмотров 1,7 тыс.Год назад
This excellent and completely free online resource can be used to complete the electric circuits practical activities at www.liacoseducationalmedia.com/electric-circuits. Here is the link: sciencedemos.org.uk/electronics.php
Electric Circuits Prac. Students love this activity!!
Просмотров 191Год назад
A brief introduction to the Designing Electric Circuits prac that can be found at www.liacoseducationalmedia.com/electric-circuits.
Extension Electric Circuits
Просмотров 116Год назад
A very brief description of how to do the Electric Circuits Extension Activities prac at www.liacoseducationalmedia.com/electric-circuits.
Isotopes and Atomic Notation
Просмотров 406Год назад
A short video that explains what isotopes are and how scientists use atomic notation to express which atoms they're talking about. Worksheet included. This is the link to the worksheet: www.liacoseducationalmedia.com/YT-QS1-Isotopes-and-Atomic-Notation.pdf This video is a small excerpt from Shedding Light on Nuclear Radiation Episode 1: Atomic Structure. The Shedding Light on Nuclear Radiation ...
The strength of the Sydney Harbour Bridge hinges on its hinges.
Просмотров 1,2 тыс.2 года назад
A short video about the brilliant hack that the designers of the Sydney Harbour Bridge used which ensures that the steel arch will not crack (and fail) as it expands and contracts in hot and cold weather.
Bowel Cancer and how to do the National Bowel Cancer Screening Program Test. Warning: involves poo.
Просмотров 3,2 тыс.2 года назад
The Australian Government has set up the National Bowel Cancer Screening Program. This unofficial video explains what bowel cancer is and shows how to do the test. Go to their website at www.health.gov.au/initiatives-and-programs/national-bowel-cancer-screening-program Three still images of polys and the cancer are taken from All about colonoscopies: ruclips.net/video/W6h3xKqamjs/видео.html and...
Best Bread Ever! Learn from the Master Bread Maker (my mum). It's delicious!!
Просмотров 9082 года назад
Best Bread Ever! Learn from the Master Bread Maker (my mum). It's delicious!!
How the Numbers on the pH Scale Work.
Просмотров 2 тыс.2 года назад
How the Numbers on the pH Scale Work.
Strong Acids, Weak Acids, and H+ Ions: An Introduction for Students. Worksheet Included!
Просмотров 9692 года назад
Strong Acids, Weak Acids, and H Ions: An Introduction for Students. Worksheet Included!
Acid-Base Neutralization Reactions: An Introduction for Students. Worksheet included!
Просмотров 11 тыс.2 года назад
Acid-Base Neutralization Reactions: An Introduction for Students. Worksheet included!
Why doesn't our own stomach acid kill us?
Просмотров 5 тыс.2 года назад
Why doesn't our own stomach acid kill us?
Drawing Graphs on Google Sheets (to analyze Usain Bolt's awesomeness)
Просмотров 3682 года назад
Drawing Graphs on Google Sheets (to analyze Usain Bolt's awesomeness)
Right becomes left and left becomes right. But why? Lateral Inversion Explained.
Просмотров 22 тыс.3 года назад
Right becomes left and left becomes right. But why? Lateral Inversion Explained.
Hydrogen's Awesome Power: It Burns… And it Explodes!!
Просмотров 6833 года назад
Hydrogen's Awesome Power: It Burns… And it Explodes!!
Axe vs Block Splitter: Chop Wood like a Pro
Просмотров 8 тыс.3 года назад
Axe vs Block Splitter: Chop Wood like a Pro
An Introduction to Waves for Students (with its own activity sheet!)
Просмотров 17 тыс.3 года назад
An Introduction to Waves for Students (with its own activity sheet!)
Newton's Second Law of Motion: "F", "m", and "a" are in a relationship.
Просмотров 1,5 тыс.3 года назад
Newton's Second Law of Motion: "F", "m", and "a" are in a relationship.
Gallipoli Balloon Bursters (Drip Balloons): water-powered contraptions that burst balloons.
Просмотров 1,4 тыс.3 года назад
Gallipoli Balloon Bursters (Drip Balloons): water-powered contraptions that burst balloons.
Great Vid! This has helped me out in a big way.. Cheers
thank you. it's a much more clear and simple explanation than any i've encountered.
Super
I live at around 6° north latitude. On one part of the year the sun is at the south sky, another part at the north sky. Here where I live, on April 4th and September 8th every year the sun is directly overhead. If you put a metre ruler vertically on those days where I am, the length of the shadow casted by the ruler is... nil!!! This is the sun is at 90° altitude, and cot 90° = 0.
Τέλεια ευχαριστούμε πολύ για την συνταγή. καλή συνέχεια
Thankfully i just want to know explanation for the wheiter
Sooo, earth doesn't wabble then ?
This man is great in explaining things which are complicate👍tnx brother for your geography classes really helpful for my exams. Love from india❤❤
Made the old way which is the best! Way to go Mum!My mother mad her dough similarly but used yeast. Other than that basically the same and the best crusty kora/filo. World Class Mums!
excellent sir
What an base
에이 뭐얔ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ 수동으로 식당 트레이 써서 수작업으로 증명하네 아메리칸 과학수업 별거아니넼ㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋㅋ
سبحانك ربي لا الاه الا انت استغفرك واتوب اليك
What a explanation 100/10 all my doubts have been cleared
🔥
You are a legend sir.
It’s taken me a long time to find a video that explains properly how watering down an acid or base affects the PH. Thank you for the visual too
My teacher told me back in the day when its sumer the earth is close to the sun and when winter is when its far from the sun ...what a Mandela effect 😂
That's actually true if you live in the southern hemisphere, but the effect is too small to matter much.
Thank you. This is the first time it has been explained how the angle of tilt increases the area of land receiving the radiation. And the amount of time that the land is receiving that radiation. I now understand
Good explanation
Thankyou!
at but you didn’t explain why days are longer or shorter, which is what I wanted to show my son. You only explained why it’s hotter or colder. Most videos have this omission! 😢
See my "Why are the days longer in Summer?" video: ruclips.net/video/ebILyc9vEL8/видео.htmlsi=tAk8yp_Xfi2SwDOl
this is wrong
I think maybe she’s done that before…
REALLY GOOD vid, WELL DONE! - best illustration PLUS practical proof I've seen in my search. I had bought into the story that the effect is only accidentally true on small scale (which had demoralised my knowledge's usefulness). Now logic of supposed theory is restored to workableness (otherwise known as simple integrity = whole and complete) :-) By the way - that demoralisation is a seriously negative force on a mind that is curious to find knowedge that is useful AND logically coherent. (See the second area I'm asking you for help on further below. Hence I'd really appreciate some light in THAT area too). However ( :-) )- just one question on your coreolis explanation: - When you threw the ball, it was similar to the explanation others give for the wind deflection of low and high pressure systems, BUT... - when the wind sets off toward the centre of the low pressure, it is NOT like a flung ball! And THAT was giving me an itch of "false explanation" syndrome reaction when I saw other people illustrating it based on "initial direction of throw, where the target has now moved away from where it was" . In the case of the wind, is not like the ball (nor like an artillery shell fired a great distance!). It is being DRAWN/PUSHED toward the centre which -even if it shifts, remains as the place it is being DRAWN/PULLED toward. This is the fault in the "vector" diagram approach where the guys treat the initial direction as then fixed like the launched ball - but it's not. Coming to your FANTASTIC top of the world looking down, with a big circle from pole to equator diagram (geniusly better than any other I've seen), SOMETHING itched about the North to South part AFTER you had followed it with the South to North part; ...-my mind went back to the N=>S bit, and went "there's something not quite the same there". Looking again and again, what i see is that however small your distance from the North pole is, it is STILL moving EAST (from our bird's eye viiew [If you draw a line on the (obviously unmoving screen) from north pole of earth south to equator, then run your animation of the movement of the disc, you will see that the whole disc -including your red line, moves eastward]) when you launch it, not West; this latter is opposite to the direction of your circle's overall rotation, whereas your S=>N side is ALSO moving EAST when it starts, which is the same direction as that of rotation of your circle. In short, I think you have given slightly different explanations for north water spot ("kind of standing start", "APPEARS to be...") vs south water spot ("already moving east faster"). Do you see what I mean, and can you clarify that? (One possible area (in a fluid, which DOES have some cohesion, as does air simply through pressure to fill the space if neighbouring molecules move) is that the because of the cohesion, the faster moving side over-rides/pushes/pulls the slower moving side (with its weaker 'eastward' velocity...?) and 'wins' the battle, thus causing rotation that effectively forces the northern spot westward....?) A further aspect you might be able to help with is the wind direction they come up with in weather systems. If you look at a pressure map, it shows pressure contours (isobars, where pressure is the same along the line like height on a contour). The weather guys keep showing wind as flowing EXACTLY along the pressure contour i.e. it never crosses out of the same pressure (EXCEPT for "a SLIGHT effect caused by friction with ground ONLY at near-ground wind level - where it gradually drifts out of its pressure zone into another...). I just cannot buy it that coreolis effect completely negates the pull/push of pressure in the absence of ground friction, and PURELY "because of Coreolis effect". Can you shed any light on this? PLEASE!! It is doing my head in!
ONLY 7K SUBS?!
TRY EXPLAINING THIS to a “Flattard” (a flat earther)
No need to artificially influence the water drainage at the Equator to witness a significant difference. A LARGER basin and plug hole could have been used in this experiment. I’m also Australian and I’ve done the TEST right on the Equator in Indonesia. However, if you use a larger plug hole than used in this video, the movement is significant and undeniable. Without any interference or influence on the stilled water, the drainage was even and direct and straight down the plug hole exactly on the Equator, and significantly drained in opposite directions just 10 meters each side of the Equator. Next time, use a bigger basin and larger plug hole.
Although the days do get shorter in summer, but they are still longer though, but they are getting shorter as we head towards autumn
Fake.
3:19 blud did not finish his sentance 😭
In my mind i was always that spring is green, autumn is red, summer is yellow and winter is white or blue. This is due to the causes that make these color appear in just seasons.
Now it's brown every season for mud 😂😂😂😂
chup kar
Bugger you made me hungry 👍🏻👍🏻 Yugoslavs do the same . 👍🏻👍🏻👍🏻
A new physics teacher here, giving this a go tomorrow! Great idea for my Yr 11s, thanks for sharing :)
Hope it goes well!
god-tier level of explanation
Axes can work if you work from the outside in . Buckin Billy Ray Smith shows some great techniques for this.
Just found your channel. I just love these type of recipes. Your mum shows us years of experiences in the Greek kitchen. Just pure gold your videos are. To pass these family Greek recipes on to others is wonderful. Thanks for sharing. I hope you still are blessed with your mum and you get inspired to do new Greek family recipes please. Blessing to you and your mum ❤
thanks
According to Kepler's theory - the distance of the earth to the sun is not the same during winter and summer. Why are you in a perfect circle? How could the sun be farther away during aphelion and be summer time? And be closer to the sun during perihelion -and be winter? Not to mention the sun's size remain the same in the sky? Heliocentrism doesn't make any sense, at all. Our globe is stationary. The sun moves!
Nonsense!
dumb FUCC it's not alu mini um, it's alum in um
Maybe in the US, look up a periodic table how scientists and the rest of the world calls it 😄
Will you please tell me the focal length of an hyperbolic mirror.
So, he didn't even come close to, or allude to the reason. What a waste of time, I guess "he's a climate scientist".
how are inter-atomic sizes measured technically, with which equipment setup?
They use X-ray crystallography and various machines that produce beams of electrons. It's pretty complicated stuff!
চাঁদকে সঙ্গে নিয়ে সূর্যের কাছাকাছি এসে সূর্যের আকর্ষণে পৃথিবীর বাঁধা পড়ে সূর্যের চারদিকে পৃথিবী চাঁদকে সঙ্গে নিয়ে ঘুড়ছে কি
পৃথিবীর আকর্ষণে চাঁদ বাঁধা পড়ার কারণে আর চাঁদ যেদিক দিয়ে পৃথিবীর কাছাকাছি এসেছিল সেই দিকের কারণে ২৩.৪° তৈরি হয়েছিল কি
Wow really good explanation and production value. One of these videos that will probably survive the next 1000years
booooo coal
It is very sad that still 2024 there are no live camera for whole earth from space!! another scientific query I have is: earth is tilted to left(from viewer's point,)means opposite to this video which shows right sides bent. why I think left bent tilt? because Vancouver vs Halifax, NS! if it was tilted right then Halifax would have those "mild tropical forest" red woods etc. rather Vancouver has it!! see? tilt earth left and see how well vancouver/ west side of north america faces more sun!!!. if anyone knows then explain😂. coz I am debating where to move, east end or west end of Canada😂
That’s the most ridiculous thing I’ve ever heard! Ha! So, so what you’re telling me is that Santa Clause has to change into shorts and a T Shirt when he flies south Christmas?? Preposterous. The reindeer would get too hot, and the entire sleigh-system would overheat. Check your facts Aussie...