Every aspect of the world today – even politics and international relations – is affected by chemistry. ~ Linus Pauling - 1901 to 1994
Time is the best appraiser of scientific work and I am aware that an industrial discovery rarely produces all its fruit in the hands of its first inventor. ~ Louis Pasteur - 1822 to 1895
Anastase Dragomir (1896–1966) Romania – Ejection seat.
Joseph G. Gall (born 1928) USA – In situ hybridization (cell biology).
Ibn al-Haytham (Alhazen) (965–1039) Iraq – camera obscura pinhole camera magnifying glass.
Karl Drais (1785–1851) Germany – dandy horse (Draisine).
Ruth R. Benerito (1916–2013) USA – a.o. Permanent press (no-iron clothing).
Aaron D. O'Connell (born 1981) USA – first Quantum machine.
Henry Maudslay (1771–1831) UK – screw-cutting lathe bench micrometer.
Richard J. Gatling (1818–1903) USA – wheat drill first successful machine gun.
Valentyn Glushko (1908–1989) Russia – hypergolic propellant electric propulsion Soviet rocket engines (including world's most powerful liquid-fuel rocket engine RD-170).
David Strang (inv. 1890) New Zealand – first Instant coffee.
Zang-Hee Cho (born 1936) South Korea – co-inventor of Positron emission tomography and PET-MRI.
B. F. Skinner (1904–1990) USA – Operant conditioning chamber.
Leonard Rivkin (inv. 1962) USA – Child safety seat.
Ladislas Starevich (1882–1965) Russia/France – puppet animation live-action/animated film.
Cornelius Drebbel (1572–1633) The Netherlands – first navigable submarine.
Eugen Baumann (1846–1896) Germany – PVC.
Tullio Campagnolo (1901–1983) Italy – Quick release skewer.
Evangelista Torricelli (1608–1647) Italy – barometer.
Alexander Graham Bell (1847–1922) UK Canada and USA – telephone.
Jack Kilby (1923–2005) USA – patented the first integrated circuit.
(via YouTube)
I accept no principles of physics which are not also accepted in mathematics. ~ René Descartes 1596 to 1650
A fact acquires its true and full value only through the idea which is developed from it. ~ Justus von Liebig - 1803 to 1873
Every aspect of the world today – even politics and international relations – is affected by chemistry. ~ Linus Pauling - 1901 to 1994
Suppose we have an unknown number of objects. When counted in threes 2 are left over when counted in fives 3 are left over and when counted in sevens 2 are left over. How many objects are there? ~ Sunzi The Mathematical Classic of Sunzi - Chinese mathematics problem from c. 450 AD
What is possible in the Cavendish Laboratory may not be too difficult in the sun. - Sir Arthur Eddington 1882 to 1944 Astronomer Physicist Mathematician
We must reason in natural philosophy not from what we hope or even expect but from what we perceive. ~ Humphry Davy - 1778 to 1829
Progress is made by trial and failure; the failures are generally a hundred times more numerous than the successes ; yet they are usually left unchronicled. - William Ramsay 1852 to 1916 Chemist
No movie data found
No movie data found
- $5 Preloaded 30-Day wireless service at 2¢ per VOICE TEXT & 2¢/MB nationwide 2G 3G & 4G LTE Data. That's 250 minutes talk or 250 texts or 250 MB Data.
- Our prepaid sim cards are designed for users that need a minimal amount of airtime each month/year. Sim card is free and pre-cut in 3 sizes to fit any device, standard-sized SIM, Micro-sized SIM or/and a Nano-sized SIM card.
- Supports GPS tracking devices such as but not limited to vehicle trackers, kid/pets tracker, personal tracker, senior tracker.
- No Activation fee NO Contract NO Credit Check.
- Our service will work within the United States in partnership with T-Mobile Network. Roaming is not supported in our plans.
- Control any plug in device from anywhere and keep an eye on your device's energy usage using the Geeni app (iOS 8 or higher/Android 4.1 or higher)
- No hub required, Wi-Fi built-in
- Set your schedule and automatically tailor your plugged in devices to perfectly fit your life
- Save money, energy and the environment
- Voice control with Amazon Alexa & Google assistant
- Powerful function :pedometer, distance, calorimetric measurement, heart rate monitoring, blood pressure monitoring, blood oxygen monitoring, sleep monitoring, SMS and content alerts, alarm settings, incoming calls alert, caller ID display, application messages alert, find your phone, anti lost, reminder of exercise goal.
- Methods: scan the QR code on the manual or download "Wearfit" in APP store. Please make sure your phone Bluetooth function was turned on. Open "Wearfit", click the selection of link to bracelet, find the device name in the list and click it. Then enter the main interface. The "wearfit" app is compatible with Bluetooth 4 and above smart phones, iOS version 8 above, or Android version 4.4 above.
- To measure heart rate, blood pressure and oxygen, it need to wait for 1-2 minutes. The measurements are for reference only, as it's not a medical device after all.
- The bracelet is made of special silicone, comfortable for wearing, suitable for 5.5-8 inch various sizes of wrist. 80mA lithium battery, charging 1.5 hours about 5 days of standby time.
- Waterproof: waterproof grade IP67, can effectively prevent the rainwater, sweat, and prevent dust.
