From electrodes to optics: Non-contact vital sign acquisition

Vital sign monitoring is an essential part of health care. Clinicians, nurses, and paramedics use them to quantify a patient’s wellbeing. This is useful for monitoring their health over long periods of time or assisting in diagnosis. One of the most common methods of conventional vital sign monitoring is the electrocardiogram, or ECG for short. […]

Errores al atornillar en metal con autotaladrantes (Bricocrack)

These Squishy Batteries Are Made Out of Water, Here’s How They Work

We humans are soft and squishy, and don’t like electricity. Robots are hard and pointy, and they love it. So how do we make a robot that’s soft and squishy like living things, but still gets power? Hydrogels of course. Hard, metal robots are so 20th century. “Soft-robotics” is hip. Just like me. Soft-robotics involves […]

Definition of Voltage and Current (ElectroBOOM101-002)

Hi, now that you know the most accurate theory of how electron came to life, let’s get into electronics, but not quite yet. I can’t just tell you what the voltage and current are – the video would be too short. You won’t quite grasp the meaning. So when scientists were discovering electricity, they already […]

Regulating Monopolies: A History of Electricity Regulation – Learn Liberty

One way we usually associate with government intervention or government activity is the regulation of monopolies. And we think of legislation like the Sherman Antitrust Act as a way that we control the growth of monopoly, market power, and the ability of firms to come to dominate one industry. The history of this kind of […]

Exotic Elements vs. Magnet | Thor’s Metal? | Part 6/6

Hi! I have finally found and been able to afford five new elements besides the 69 I have already shown in previous episodes. I will show you the new, beautiful and beasty samples and their reaction near a magnet. All five are ‘a little’ on the hazardous side so let’s change my usual hazard roulette […]

Welder from a Lighter You’ve Never Seen Before | Lighter Hacks

lighter hack how to do a welder from a lighter with cheap and home materials very used in FUN’N’PIC projects diy very useful tool funny for kids

What If You Fell Into Molten Metal Terminator 2 Style?

In the famous- and in our opinion, best- Terminator movie, Terminator 2: Judgment Day, the titular Terminator ends the film by lowering himself into a blazing hot crucible full of molten metal. The extreme temperatures are the only way to ensure his total destruction, and through that complete destruction of all his hardware, ensure that […]

We Could Harvest Electricity from Human Tears, This Is How It Works

They say there’s no use crying over spilled milk but it turns out tears can have a use after all; generating electricity. Well more accurately an enzyme in tears, lysozyme, can be used to generate a tiny amount of electricity. Lysozyme is also found in saliva, mucus, egg whites, and milk, so spilled milk seems […]

Metals in glass are AWESOME!

Hi! It is time to take a closer look at this vase, that appears violet at day but blue at night. What is causing this effect? Is white light not just white? Will other types of glass change color too? And what happens if we go a bit to the extremes with the light? Let’s […]